A simple conjunctivitis of the globe often will be followed by ulceration of the cornea, giving rise to intense photophobia, and leave behind it opacities of that organ which remain a perpetual evidence of the scrofulous diathesis, if they do not shut out for ever the light from the eye. Or if it is the palpebral conjunctiva that is affected, the meibomian glands and follicles of the ciliæ become involved, destroying the lashes and leaving the lids raw and everted or inverted—a perpetual deformity. In short, there is no conceivable disease or injury occurring in what we may call the intensely scrofulous that does not have impressed upon it some one or more of the malign characteristics which we have spoken of as indicative of the scrofulous diathesis. But it is not probable that there is ever any special disorder or lesion which can be said to be caused exclusively by scrofula; or, in other words, there is no such disease as a specifically scrofulous one. Lupus, cold abscess, and particularly caseous glands, are especially attributed to struma, because they are often thought to make their appearance independent of any assignable cause; but as boils, eczema, impetigo, and numerous other affections of the skin and areolar tissue affect children who are not scrofulous, and equally independent of any known causes, the argument is not conclusive. Besides, all these affections occur sometimes in the non-scrofulous; and even caseation of a single inflamed gland quite often occurs in children who are weak or in ill-health, but who show no other evidences at that or at any other time of the scrofulous habit.

DIAGNOSIS.—The only affection likely to be mistaken for scrofula is congenital or acquired syphilis in its later manifestations. In this disease we see the same tendency to increased cell-production, the same tedious, slow, and intractable inflammations and ulcerations, which are characteristic of scrofula. And this apparent similarity has induced many persons to believe that scrofula is nothing else than syphilis in the second or third generations. But in congenital syphilis the lesions usually make their appearance soon after birth or are present at birth, and long before even hereditary scrofula begins to show its malign influence. In most cases, too, a history of syphilis can be obtained, and even when this is not obtainable a few inunctions or fumigations with mercury, in connection with a few large doses of iodide of potassium, will very quickly decide the question of diagnosis for us.

In the case of lupus, in which Erichsen admits there is no means of positively distinguishing the syphilitic from the so-called scrofulous varieties, the diagnosis is more difficult. But as this disease appears later in life than the more ordinary scrofulous manifestations—when, therefore, a history of syphilis can generally be obtained if there is one, and when there would almost certainly be also a history of scrofula if it existed—it would seem that the diagnosis even in this case cannot be so difficult. Diagnosis here, however, is of little consequence, since the treatment recommended for both forms is the same.

PROGNOSIS.—This of course depends upon the nature of the special lesion. The simpler lesions incident to childhood, such as glandular hyperplasiæ, catarrhs, eczemas, impetigoes, etc., usually do well under appropriate treatment and proper hygienic conditions. Diseases of joints, bones, mesenteric glands, etc. often terminate fatally or result in serious deformities and permanent impairment of function. Not infrequently diseases of the bones and articulations, attended with profuse and protracted suppuration, cause amyloid degeneration of the liver, kidneys, spleen, or other glandular organs, and, as a consequence, death. Catarrho-pneumonia in a scrofulous subject almost invariably causes phthisis sooner or later. Occasionally the caseated cellular exudation in the air-sacs remains quiescent for months, and even years, the patient remaining quite well except for a harassing cough during the winter months; but sooner or later the caseous mass will soften, the symptoms of active consumption ensue, with fever and wasting, and death closes the scene. Far more frequently, however, softening and suppuration follow swiftly upon the caseous degeneration, and the whole process occupies a period of only a few months. Tuberculosis especially runs a rapid course in these subjects, and while a few perhaps only develop tuberculosis of the lungs—in which case the duration of the disease may be a little longer—in by far the larger number there is a generalization of the tubercular process which puts a speedy end to their existence.

TREATMENT.—This may be most profitably discussed under two heads—prophylactic and therapeutic.

Prophylactic.—Scrofulous persons who are closely related by blood should be earnestly advised not to intermarry. We have so often seen the deplorable results upon offspring of such marriages that we cannot too strongly urge this upon the profession. Such persons should be frankly and clearly told what are most likely to be the consequences of such marriage, and all possible moral influences should be exerted to prevent them. The canons of the Church wisely interdict such marriages, but, unfortunately, its ministers seldom attempt to enforce them, or if they do their efforts are made ineffectual by the facility with which the marriage-rite can be obtained from civil officers in most of the States of the American Union. The medical profession can do more than any other class to diffuse knowledge and create a correct public opinion upon this subject, but, unfortunately, it too often neglects this important mission.

The children of scrofulous parents should be nursed (at the breast) longer than other children, so as to ensure an abundance of animal food during the first two years of life. Some advise scrofulous mothers not to nurse their children, lest they should imbibe the scrofulous taint through the milk. This fear is entirely groundless. We know of no reason why such a mother should not nurse her offspring, unless it be that it injures her. The child receives its scrofulous inheritance not through the mother's milk, but from the ovarian or spermatic cell. Milk can convey no disease or diathesis except on account of its deficiency in nutritive properties. If, therefore, there is any special reason why the mother should not nurse her infant on her own account, it may be well to turn it over to a healthy wet-nurse; but the temptation to give an infant raised on the bottle starchy foods prematurely is too strong generally to be resisted. The numerous infant foods advertised consist principally of starch, and young infants would infallibly starve on any or all of them if their venders did not always direct that they should be taken with a large quantity of cow's milk. If the circumstances of the parents do not enable them to obtain a wet-nurse, then good cow's milk constitutes the best food for infants until they have cut their canine and anterior molar teeth. The custom of weaning infants at a certain age in every case is a pernicious one. Some infants are as well developed as to their digestive organs at fifteen months as others are at thirty, and the eruption of the teeth may generally be taken as a safe guide as to that question. A moderate amount of food containing starch after the period indicated may be allowed, but always with a preponderance of animal food. It is not so much the starch that acts injuriously upon the nutrition of children as the excess of that substance; and if the food contains but little nutrition in proportion to its bulk, it is so much the worse. Even milk containing too little casein and fat in proportion to the watery elements may be perhaps quite as injurious as potatoes. And hence if the mother's milk should be poor in these elements, it ought to be supplemented with cod-liver oil or other animal fat in small doses.

A practice existed among the Southern slaves (and to some extent also among the whites) before emancipation which at first I was inclined to condemn until I saw the excellent effects resulting from it. Within an hour or so after birth a piece of fat salt pork or bacon was placed between the child's lips, and it was permitted to suck this at all times when not nursing. Tied to its wrist by a short string, so as to prevent swallowing it, this piece of pork furnished both nutrition and amusement to the infant for many hours while the mother was at work in field or garden. The children throve well on it, and thus treated we found them to be as well developed at twelve months as most other children were at twenty. It was doubtless due in part to this practice that there was so little scrofula among them.

An abundance of pure air is also a valuable factor in preventing the establishment of the strumous diathesis. Strict regard, therefore, should be had to ventilation, and overcrowding should if possible be avoided. Children over twelve months of age should not even be permitted to sleep with their parents, but should have in cold weather a crib, cradle, or other bed to themselves; and in warm weather they should be put to sleep in a net hammock, which is now so cheap as to be within the means of almost everybody. This will not only secure to them a better supply of air, but it will also prevent them from suffering so much from the heat, which is so potent a factor in the production of cholera infantum.

Bathing in proper season is also useful as a prophylactic. Sea-bathing especially has long enjoyed great credit as a remedy for scrofula, but we think this is often resorted to too soon and practised at improper times. In warm countries a bath of cold water may be taken every day in the year, but it should be given at the warmest hour of the day, not early in the morning. In all climates due regard should be had to the powers of resistance to cold and the promptness of reaction after the bath. If children remain cold and pale for a long time after the cold bath, the practice should be discontinued and tepid water substituted. In colder climates tepid bathing should be practised once or twice a day during the winter, and in summer a little lower temperature may be used. Bathing children under three or four years in the sea at any time is pernicious, both because the temperature is too low and on account of the fright which it always causes in these young children. After four years a child will take to the water almost as instinctively as a young duck.

Therapeutic.—Almost all of the so-called scrofulous manifestations belong to the surgeon, dermatologist, or oculist and aurist, and we shall therefore say nothing about the special and local treatment of these manifestations, but refer the reader to works upon these several departments of medicine. But as little success will be had in the treatment of these special disorders unless due regard is had to the general condition, and unless the local treatment is supplemented by constitutional measures, we shall briefly give some directions for this constitutional treatment of the scrofulous individual.

It is important in determining upon the proper treatment in any given case to bear in mind the division of the scrofulous into the two types of torpid or lymphatic and sanguine or erethistic already described. It is true that in many cases it is not easy to determine to which class a patient belongs, and many possessing some of the characteristics of both certainly cannot be referred to either. Still, in many cases the discrimination is easy, and then furnishes very clear and valuable indications as to treatment. Iodine (and its preparations) has since the time of Lugol, who first brought it into prominent notice, been regarded as a useful remedy in scrofula. But burnt sponge (spongia usta), which contained the iodides of sodium and potassium, had been used to dissipate goitrous and scrofulous swellings many hundreds of years before the time of Lugol. It is a valuable remedy in certain cases, and if it is falling into disuse it is probably for the want of proper discrimination in the selection of cases. In all cases in which there seems to be an abundant production of fat, and therefore in nearly all the cases of coarse struma where there is an indolent process of assimilation and disassimilation, iodine and its preparations will be found useful. Indeed, in the form of syrup of iodide of iron we have rarely failed with it to cause strumous enlargements of glands to disappear when the remedy was used soon after their first appearance. Of course, neither iodine nor any other medicine can have any effect in removing these enlargements after the glands have become caseous. While good results may be obtained with the syrup in all forms of scrofula, it is unquestionably in the sanguine and neutral types that it is most useful. It should be given in doses of 10 to 30 drops to children under five years of age, and to older ones ½ to 1 fluidrachm three or four times a day may be administered. We have given the latter dose to children four or five years of age for a long time, with the best effect upon their scrofulous manifestations, and without any injury whatever to their digestive organs.

In the torpid types preparations stronger in iodine should be used. Here Lugol's solution or iodide of potassium or sodium will be found very useful, either alone or in connection with the iron preparation above mentioned. Indeed, as in these cases it seems to be disassimilation that appears to be specially faulty, even very small doses of mercury in the form of bichloride or biniodide will be found useful. Donovan's solution may be prescribed in these cases along with the active preparations of iodine with good effect, or if the arsenic in that preparation is objectionable, one-fiftieth of a grain of bichloride or biniodide of mercury may be substituted. The mercurial should not, however, be continued longer than one or at most two weeks at a time, after which it should be suspended and the iodine continued.

Cod-liver oil, which is too indiscriminately prescribed in all cases, will be found to be of little use in the lymphatic types, if indeed it is not actually injurious; but in those cases with pale, thin skin, with deficient development of fat, and with small muscles—in short, those in which emaciation or delicacy is prominent—it is a most valuable remedy. It is almost surprising to see how rapidly ulcerations, caries, eczemas, catarrhs, etc. occurring in this class of subjects will disappear under the use of this medicine alone.

The hypophosphites and lactophosphates are also useful in this class of cases, especially where there is disease of bone or joints, in connection with the cod-liver oil. We have long been in the habit of using the following formula, which we have found very useful:

S. Teaspoonful to tablespoonful three times a day according to age. Syrup of iodide of iron may be added if desirable, though we prefer to give this by itself.

Gentle exercise, passive or active, pure air, well-ventilated sleeping apartments, a generous diet—in which wholesome animal food should predominate—and bathing are of course as necessary and as useful in the treatment as in the prevention of the scrofulous diathesis.

Alkalies should be given in all cases in which we are trying to dissipate enlarged lymphatic glands, for the reason that caseation of these glands occurs because of insufficient alkalinity of the blood to effect reduction of fat, and because also the strumous almost always suffer from excessive acidity of the gastric and other secretions. When the iodides of potash or soda or the hypophosphites of lime and soda are given, the additional administration of alkalies may not be necessary; but if not, bicarbonate of sodium or potassium (which have long enjoyed a good reputation in the treatment of struma) should be added to the other remedies.

Since the appearance of Niemeyer's Handbook of Clinical Medicine the proper treatment of scrofulous glands that have undergone the caseous degeneration has been a moot question. Some recommend the ablation of these glands by the knife, some advise spooning out the caseous matter through a small opening, while others prefer to await the natural process of softening and the discharge of the caseous matter by suppuration. There can be no question that the removal of these glands by the knife, when this can be done without serious risk, will leave behind a less unsightly scar, and will be attended with less fever and consequent deterioration of the general health, than usually attends suppuration. Spooning out the caseous matter will perhaps leave no extensive cicatrix, but we can never be sure that by this operation we have removed all the caseous matter, and it must certainly be more painful than the knife. Mothers will generally object to either of these operations, and as the risks of infection by absorption of the caseous pus during the suppurating process do not seem to be very great, it is perhaps best to leave these glands to nature, unless the vitality of the patient is so low as to give reasonable ground for fear that the child may succumb to the effects of the natural process. If any surgical interference is deemed necessary, we are decidedly in favor of removing the caseous gland entire by the knife.

HEREDITARY SYPHILIS.

About a half century ago Mr. Abraham Colles, who had just resigned the professorship of the Theory and Practice of Surgery in the Royal College of Surgeons in Ireland, the duties of which, in the opinion of the college, he had discharged for thirty-two years in an "exemplary and efficient manner," wrote the following introductory paragraph to his remarkable chapter on "Syphilis in Infants:" "Perhaps there is not in the entire range of surgical diseases any one the contemplation of which is more calculated to arrest our attention or to excite our interest than syphilis infantum."

Although it was not then, and is not at the present day, strictly relegated to the domain of surgery, hereditary syphilis, like its parent disease, was generally treated of by the practitioner of that branch of medicine. And yet in the great majority of instances the management of such cases, especially as regards their family relations, the relations of husband and wife, the management of the latter during pregnancy, the delivery and subsequent care of the child, the necessary attention to the safety of other members of the family—in fact, all of the most weighty responsibility—falls upon the ordinary medical attendant. It is therefore in every way proper that the condition should receive some notice in a system of general medicine.

A proper presentation of the subject of hereditary syphilis involves a consideration of the vexed question as to the mode by which the disease is conveyed from parent to offspring. That it may be so transmitted has been generally believed since the doctrine was first announced by Torella at the end of the fifteenth century; and the facts in its support are so numerous and convincing that, in spite of a few distinguished opponents—among whom John Hunter was the most conspicuous¹—it has been unhesitatingly accepted by the profession down to the present day. As regards the manner of transmission, however, controversy has been and still is rife. Opposing theories have been constructed and ardently supported, differing radically as to essential points, often resting upon exceptional or anomalous, and still oftener upon imperfectly observed, cases.²

¹ Works of John Hunter, vol. ii. p. 383.

² Parrot, in a clinical lecture on syphilitic abortion (Le Progrès Médicale, Nov. 3, 1877, p. 798), says: "The infection of children was known, but its true origin was not suspected. The belief of Gaspard Torella (1498) and Matthioli (1536) that it came from the nurses through the milk was generally accepted."

According to Diday, Paracelsus (1529) was the first to plainly state the heredity of syphilis: "Fit morbus hereditarius et transit a patre ad filium."

Others attribute the original announcement to Augier Ferrier (1553), and it seems certain that he was first to specify the three modes of infection of the product of conception: "La semence du père, celle de la mère, et la contamination de la mère durant la grossesse."

Fallopius in a posthumous treatise on the Mal Français (1566) adds the authority of his name to this view: "Præterea videbitis puerulos nascentes ex foemina infecta, ut ferant peccata parentum, qui vedentur semi cocti."

Ambroise Paré also acquiesced in the theory, saying, "Souvent on voir sortir les petits enfants hors le ventré de leur mère, ayant ceste maladie, et tost après avoir plusieurs pustules sur leur corps; lesquels étant ainsi infectés, baillent la vérolle à autant de nourrices qui les allaictent."

Subsequently, Mauriceau, Boerhaave, and Astruc sustained the same view, which, with the single exception of Hunter, had no prominent antagonist.

It was not, however, until the eighteenth century that it was described with any attempt at detail or exactness by Rosenstein, and his essay is loaded with errors. It was in the foundling hospitals of Paris at the end of the last century, in the wards of Salpétrière and Bicêtre, and in the hospitals of Vaugirard and in the Capucin convents of the Rue Saint Jacques, where pregnant women and nurses attacked with syphilis were admitted, that methodical and trustworthy observations were made (1780-1810) by Colombier, Despenières, Doublet, Mahon, Cullerier, and Bertin. Since then the history of the disease has been the history of syphilis itself.

A full consideration of these, or even a recapitulation of the respective arguments pro and con, would far exceed the limits allotted to the present article, and we will confine ourselves simply to stating the questions which most nearly concern the practical physician, and the conclusions which the accumulated observation and experience of the profession seem to justify. The points bearing upon the general subject of hereditary syphilis which exercise an important influence upon advice or opinions of the utmost gravity as regards the happiness and well-being of the individual or family may be enumerated as follows:

1. Is syphilis in all its stages transmissible (a) to the wife or husband, (b) to the offspring? Or, in other words, is it ever proper to consent to the marriage of a person who has had syphilis? If so, under what circumstances?

2. By what means or through what channels can the disease of the parents reach the child?

3. What are the pathology and symptoms of hereditary syphilis?

4. What is the treatment—(a) prophylactic, applied to the parents, and (b) curative? We may now take these up seriatim.

No more important questions can be submitted to a medical man than those pertaining to the marriage of syphilitics. Involving as it does the welfare of many individuals, modifying or fixing the conditions or circumstances of one or more lives, his opinion should be exceptionally definite and well grounded. The responsibility of advising or consenting to the marriage of a person who has once had syphilis is undoubtedly great; the responsibility of prohibiting it is, however, no less so. Matrimony is the natural condition for the majority of people. Enforced celibacy, especially in males, brings with it not infrequently a long train of attendant evils, moral and physical. It will not do to assume that professional duty is properly discharged by telling all patients to be on the safe side and to remain single for fear of inoculating wife or offspring, unless it can be clearly shown that there is a definite and unavoidable risk in every case, which continues throughout life.³

³ "The surgeon who, on account of past syphilis, forbids marriage to an otherwise eligible man must remember that he forbids it at the same time to some woman, who, possibly, if well informed as to her risks, would willingly encounter them.... Respecting a malady so common as syphilis, while it is often our duty to warn, it is also not unfrequently our duty to encourage" (Mr. Hutchinson, preface to the English translation of Fournier's Syphilis and Marriage, p. vii.)

There are two distinct methods of arriving at an answer to the question under discussion: first, by considering the probabilities in regard to the essential nature of syphilis; and, second, by carefully weighing the clinical evidence in the matter. It seems evident that belief in any particular theory of syphilis assigning it to this or that class of disease must have an important influence in determining the opinion which is held as to its curability, or at least as to its indefinite transmissibility.

If the late symptoms, the so-called tertiary outbreaks of the disease, are held to be evidences of the presence in the system of the specific virus, which has simply remained for a long period, perhaps for many years, latent or quiescent, and which is thus again manifesting its power; if syphilis is believed, accordingly, to be a practically unlimited disease, conforming to no known law as regards its duration, corresponding to no other infectious or contagious malady in having a period of termination—more or less delayed perhaps, or more or less indefinite, but still invariably present—at which time either the particular poison or the susceptibility of the system to its influence has become exhausted;—if tertiary syphilis, in other words, is regarded as simply a continuance or recurrence of the disease, differing in no essential respect, except as to the particular tissues involved, from the same disease in its early stages, it is difficult to see how marriage can ever be conscientiously recommended to a person who has once contracted it.

It is unfortunately true that in no given instance is it safe to assure a patient of further complete immunity from the disease. In any case, however mild in its course or under whatever treatment, there is always an element of doubt as to the development of subsequent symptoms. The probability of their appearance may be reduced to a minimum, the character of the case and the thoroughness of the treatment may both seem to give assurance that a cure has been completed, and yet both patient and physician may be mortified and annoyed by an outbreak of tertiary lesions. This, I think, would be admitted by every one of large experience with the disease, and indeed furnishes the chief argument to those who deny or are sceptical as to its curability. If, then, it were impossible to predict with any sort of certainty that the contagious and highly transmissible stage of syphilis would terminate during the life of the individual, it would manifestly be unwise to permit marriage, with its risk of inoculating the innocent partner and the consequent double risk to the offspring.

If, however, syphilis is, as taught by Mr. Hutchinson,⁴ one of the exanthemata, having, like them, a period of outbreak, a period of efflorescence or eruption, and a period of subsidence, and followed, like them, by certain non-contagious sequelæ, which we call the tertiary symptoms, but which are merely relapses or degenerations of parts affected during the secondary stage, it becomes evident that the risk of transmission to wife or husband or children after the lapse of a certain interval becomes greatly reduced or almost nil. No one thinks of forbidding marriage on account of a previous attack of small-pox or scarlet fever or typhoid fever, even although there are unpleasant consequences which sometimes follow these diseases.

⁴ The London Lancet, Feb. 5, 1876; Reynolds's System of Medicine, Am. ed., p. 423.

Or if another and still more plausible theory of syphilis is adopted, and we look on the tertiary period as one of contraction or obliteration of lymphatics due to long-continued irritation by the new cell-growths of the secondary stage, which from the very onset affect those vessels, our views will be materially modified. During the primary period, then, when the new cells, which either constitute the poison of syphilis or are its carriers, are accumulating at the site of original inoculation, constituting the induration of the chancre, or are slowly finding their way into the general system through the lymphatic vessels, proliferating in their walls and thickening and hardening them, or during the secondary period, when they are rapidly multiplying in all the tissues of the body, the risk of inoculation or transmission would be manifestly great. When, however, by destructive metamorphosis and degeneration, either with or without the aid of drugs, they have been eliminated from the body, the contagious element disappears with them; and although here and there throughout the body some important lymphatic trunk may have undergone irreparable injury, and may have been contracted or obliterated, permitting of the accumulation of waste products until the node or gumma or tubercle which we call a tertiary symptom makes its appearance, yet the disease has lost much of its terror, and has become dangerous only to the patient himself.⁵

⁵ Clinical Lectures on the Physiological Pathology and Treatment of Syphilis, by F. N. Otis, M.D.; Syphilis, by V. Cornil, Am. ed., 1882, pp. 17-27.

These theories are only alluded to by way of elucidation of the statement that belief in one or the other of them has an important bearing on the relation of syphilis to marriage, and because, whichever is thought to be the most plausible, they equally lessen or altogether do away with a certain proportion of the danger formerly thought to surround the marriage of a syphilitic even after a most protracted interval. It is not necessary to accept either the one or the other implicitly. The essential point is the recognition of the fact that modern syphilographers, as a rule, regard the tertiary or late symptoms as indicative of damage done during the active period—as relapses or sequelæ, and not as fresh outbreaks, of a highly contagious and transmissible disease. Their time of appearance, their entire want of symmetry, their non-contagiousness, their non-inoculability, all favor this view, and we may now see what evidence corroborative of it may be obtained from clinical facts.

It will be necessary, in the first place, to admit that there seems to be but little doubt in the minds of most syphilographers that in rare instances syphilitic children have been born to parents who had long passed the limits of the secondary period. At least the great majority of writers upon this subject speak confidently of the exceptional occurrence of such cases, and assert that syphilis may be transmitted during any of its stages.⁶ If, however, we come to look for positive evidence in this respect, we will find very little that is entirely satisfactory. Cases are reported, to be sure, in which eight, ten, twelve, or even fifteen or twenty, years after the primary sore, syphilitic patients have become the parents of children who showed unmistakable indications of the disease. When we examine the history of the cases, we find usually that many important points are omitted without which it is impossible to be certain of its true character. Were both parents originally infected? If not, has a recent case of syphilis occurred in the one who at first escaped? If they were both diseased originally, has either been subsequently re-infected?—a much more frequent accident than has been commonly supposed.⁷ On applying these tests to the cases in question it will be found that few if any of them are thoroughly convincing. Kassowitz's observations,⁸ made, it must be remembered, upon persons with whom no mercurial treatment had been employed, seemed to show that the average limit of transmissibility was about ten years, after which time healthy children began to be born. His observations were, however, incomplete in many respects, and, like all such investigations, are of course open to the suspicion of intentional deception on the part of the patients.⁹ Even these cases, however, show unequivocally, as do all which have ever been recorded, the steady diminution of the transmissive power under the influence of time alone.

⁶ Belhomme et Martin, Traité de la Syphilis, p. 413.

⁷ Cornil, op. cit., p. 20.

⁸ Die Vererbung der Syphilis, Wien, 1876.

⁹ See also Hutchinson, British and Foreign Med.-Chir. Rev., Oct., 1877.

I have said that the majority of writers seem to have no doubt of the long continuance of this transmissive power in rare cases. There are, however, a few notable exceptions. Fournier, whose immense experience and acuteness of observation entitle his opinion to the utmost consideration, says that in cases of paternal heredity the duration of the force of transmission never exceeds at the maximum three or four years.¹⁰ In no case of the many hundreds he has observed has he known a syphilitic father to infect a child—the mother being healthy—at a later period than the one mentioned. And he is equally positive that the gradual diminution and final extinction of the syphilitic reaction of the parents upon the children is a veritable pathological law, "absolutely demonstrated."¹¹

¹⁰ Syphilis and Marriage, Am. ed., p. 87.

¹¹ Op. cit., p. 88. Of course when both parents are diseased a somewhat longer period of activity is to be expected for the poison.

M. Mireur, a careful and accurate observer, records¹² a striking instance in which in the history of a couple, both syphilitic and untreated, eight pregnancies occurred. The first resulted in abortion at fifth month; the second, in abortion at seventh month; the third, in a stillbirth; the fourth, a syphilitic child dying in one month; the fifth, in a syphilitic child dying in forty-five days; the sixth, seventh, and eighth, in living, healthy children. To me the most interesting fact in the whole relation is that during a portion of the time, and immediately after the last three pregnancies, which resulted in the birth of healthy children, both husband and wife manifested grave tertiary syphilitic symptoms—gummata, tubercles, ulcers, etc. This is direct evidence of the strongest kind in favor of the view that syphilis ceases to be transmissible by heredity at the end of a certain period, as we know that it ceases to be contagious or inoculable.

¹² Essai sur l'Hérédité de la Syphilis, Thèse de Paris, 1867, p. 91.

M. Ricord long ago,¹³ and even before him Astruc and Doublet,¹⁴ had promulgated the same theory, Ricord asserting that in the tertiary stages the only effect of the disease upon the children was so to modify their organization and temperament as to expose them to developments of a scrofulous character—a view of the relation between syphilis and struma which has been so ably supported in our own day by Professor Gross.

¹³ Traité pratique des Maladies vénériennes Paris, 1838, p. 644.

¹⁴ Legendre, Nouvelles Recherches sur les Syphilides, 1841 (quoted by Belhomme et Martin).

M. Bazin also¹⁵ denies absolutely that tertiary syphilis is any more transmissible than it is communicable in other ways, although he fails to give his reasons for this belief.

¹⁵ Leçons sur les Syphilides, 1859, p. 35.

Hill and Cooper state¹⁶ that the transmissive power continues as long as the secondary eruptions are present, but usually ceases when the tertiary stage is reached.

¹⁶ Syphilis and Local Contagious Disorders, London, 1881, p. 62.

Van Buren and Keyes¹⁷ believe that fathers with tertiary syphilis certainly, as a rule, procreate non-syphilitic children; and in speaking of the fact that when the mother has syphilis the child is generally infected, they except the later tertiary stages.

¹⁷ Genito-urinary Disease and Syphilis, 1874, p. 521.

Bumstead¹⁸ and Taylor say that without mercurial treatment the danger of transmitting the disease to offspring usually persists up to the fourth year of syphilitic contagion.

¹⁸ Venereal Diseases, 1879, p. 739.

Mr. Lane says:¹⁹ "It is certainly the rule that when the parents have fully reached the tertiary stage the children born to them are free from all signs of syphilis."

¹⁹ Lectures on Syphilis, London, 1881, p. 65.

Mr. Hutchinson says:²⁰ "It is almost an acknowledged law that parents in the late tertiary stages do not transmit taint."

²⁰ The Med. Press and Circular, Aug. 2, 1882, p. 85.

It will be seen from the foregoing extracts, which might be greatly multiplied,²¹ that there is a strong tendency on the part of many authors to limit more or less strictly the period of transmissibility of syphilis even when the disease is allowed to progress without treatment. As to the facts that it becomes milder with time, both in parents and offspring, that it ceases to be conveyed from husband to wife or vice versâ, that with each succeeding year after the termination of the secondary period the chances of escape of the product of conception increase in a rapidly augmenting ratio,—there is no difference of opinion whatever. Neither is it seriously disputed that the length of time during which the disease remains active, as well as the degree of its activity, may be markedly and beneficially influenced by the administration of mercurial treatment. Under proper medication patients who have rashly or disobediently married in the height of the secondary period have been enabled to escape the danger of transmission either to spouse or offspring—have, in fact, had children born healthy and who never subsequently manifested any symptoms of the disease.

²¹ M. Diday, Traité de la Syphilis des Nouveau-nés, Paris, 1854, p. 183; M. Bertin, Traité de la Maladie vénérienne chez les Nouveau-nés, Paris, 1870, p. 142; M. Bazin, op. cit., p. 164; M. Roger, L'Union Médicale, 1865, t. i. p. 147 (quoted by Fournier).

I may add that my own experience seems to confirm the views which have thus been set forth. I have notes of all my cases occurring in private practice in a large city—some of them, I regret to say, among personal friends or acquaintances, some of them in our own profession—and have repeatedly given permission to men to marry or to resume marital relations after three years or three years and a half of mild mercurial treatment, to which during the last six months or a year had been added iodide of potassium. In many instances healthy children have been born: in none, so far as I know, has the wife or mother been directly infected. There have been a few doubtful cases in which premature deliveries or stillbirths have occurred, but in nearly every such instance there seemed to be other and entirely competent causes for the accident; and in none of them, as I learned from the father or from the obstetrician in attendance, were the children the subjects of unmistakable syphilitic symptoms.

As to the exact time at which it is safe to permit marriage, and as to the proper treatment before and after that event, it is hardly possible in an essay like this to enter into many details. Yet so much is involved in the answer to our first question that it may not be altogether out of place here to indicate briefly the views of the writer as to general methods of treatment. This is the more proper because in every case of suspected syphilis in a new-born child, in every case of threatened or actual abortion or miscarriage in the wife of a man who has at some time in his life had syphilis, these questions will present themselves, and the answers to them will greatly influence not only the diagnosis and prognosis, but even the treatment, of such cases.

1. In the first place, then, the diagnosis of syphilis should have been assured. No venereal sore can with certainty be pronounced to be syphilitic before the occurrence of general constitutional symptoms, either the early cutaneous eruptions or at least the general glandular involvement. Treatment begun prior to these developments leaves the whole case open to the suspicion of mistaken diagnosis.²²

²² "It is unsafe to predict confidently that any venereal ulcer, even a soft sore attended with suppurating bubo, will entail no further consequences. There is a strong probability that an indurated sore will prove infecting; and there is a probability, though not nearly so strong, that a soft suppurating sore will not; but exceptions to both these general rules will be met with, and there is really no absolute proof of the infecting nature of any given sore but the fact of infection itself" (Lectures on Syphilis, James S. Lane, London, 1881, p. 23).

2. The drug which should at once be begun when the character of the case is fully recognized is mercury in one of its various forms. It may be given by the mouth, by inunction, by vaporization, by hypodermic injection, according to the preferences of the physician or patient; but, however administered, it should be given in sufficient quantity—i.e. in each case the full physiological dose of that particular patient should be employed. To ascertain this the amount used should have been gradually increased until commencing symptoms of salivation are produced, when it should be diminished about one-half.

3. The quantity which has been thus determined should be given continuously, or stopping only for the management of intercurrent complications, for at least eighteen months. If during this time new syphilitic symptoms make their appearance, the dose should be temporarily raised until they have vanished, when it should be brought down again to the original amount.

4. At the end of eighteen months or two years small doses of iodide of potassium should be added to the mercurial, and this mixed treatment should be persevered in for six months or a year longer, or should be still further prolonged if during that time any evidence of syphilis is seen.

5. At the end, then, of from two to three years, if no symptom has been seen for six months or a year, treatment may be stopped and the patient kept under observation for a year; and if during that time no symptom develops he may consider himself as in all probability cured. Any course of treatment less thorough than this should be set down as insufficient to afford any reasonable presumption of further immunity from the disease.

There is evidence to prove, on the other hand, that this plan of treatment, rigidly carried out, results in the majority of cases in curing the disease, or at any rate in putting the patient in such condition that he may with safety marry and may expect to have healthy children.

To recapitulate: Syphilis after a certain period, not extending much over four years where the disease is allowed to run its own course, and probably much reduced by treatment, ceases to be a contagious disease; and at about the same time or some time after loses, in the majority of cases, its capability of being transmitted.

As there are probably exceptions to the rule that this power of transmission disappears spontaneously within any specified time, it is never safe to trust altogether to the unaided efforts of nature, but a vigorous and sufficient specific treatment must be employed.

Given, however, the lapse of a sufficient time—say from three to four years as a minimum—the history of a proper and continuous plan of treatment, and the absence for a year or more of any specific symptoms whatever, and the risks of marriage are so reduced as probably to warrant a careful physician in permitting it.²³ And conversely, of course—and this constitutes the reason for introducing the foregoing matter into a paper on hereditary syphilis—in any doubtful case where such a history can be elicited, and where all these precautions have been observed, it is improbable that any taint of syphilis has been transmitted.

²³ This refers, of course, to an ordinary case of syphilis. If the symptoms have been unusually grave, if the deeper tissues or the viscera have been seriously involved, if cerebral or spinal complications have occurred, the situation is of course much more grave, and no step should be taken without the most thoughtful deliberation. The work of Fournier already alluded to (Syphilis and Marriage) furnishes an admirable guide under these circumstances.

Mr. Frederick Lowndes, surgeon to the Liverpool Dock Hospital (Lancet, July 8, 1882), says: "Each case must be judged on its own merits. When the constitution is good, and there has been sufficient specific treatment, marriage may be permitted within a much shorter period than M. Fournier suggests, and with safety. Syphilis alone and syphilis combined with scrofula are two very different foes to contend with, and if our patient be of a scrofulous temperament a delay even longer than M. Fournier's may be desirable."

He quotes Dr. Thomas Edward Beatty in an address at the annual meeting of the British Medical Association at Leeds in 1869: "Mercury given to the man when first diseased would, I firmly believe, have prevented this terrible calamity—i.e. the syphilitic infection of the wife; and I would now humbly suggest to all who undertake the treatment of venereal disease that if they have a certainty that their patients will remain celibate all their lives, they may heal up their sores and dispel their eruptions and sore throats in any manner they like, but that they have no right to expose the pure, innocent, high-minded females of society to contamination by marrying men treated without mercury."

Beyond this in positiveness of assertion it is not safe to go. There may be exceptions to these as to most other hygienic or therapeutic rules, but they will surely be of excessive rarity.

Before considering the methods by which syphilis can reach the child from one or the other of its parents, it may be well to mention the modes in which they can infect each other.

The father can derive syphilis from the mother only in the usual way—i.e. by contagion through a breach of surface permitting of the direct absorption of the poison, the development of the disease being attended by the usual phenomena—chancre, lymphatic enlargement, skin eruptions, etc. The woman may—and in the vast majority of cases does—acquire the disease from the husband in a similar manner. But there seems to be good reason for believing that she may also become infected through the medium of the child, who receives its syphilis directly from the father, the mother up to the time of conception having escaped contagion. More than this, it appears to be highly probable²⁴ that no woman ever bears a syphilitic child and remains herself absolutely free from the disease.

²⁴ The strongest argument against the theory that every woman who has had a syphilitic child has herself been infected lies in the existence of cases like the following, several of which have been observed: The wife of a man having active but untreated syphilis gives birth to one or two syphilitic children, she herself developing no symptoms. Later, the husband is placed on mercurial treatment. She then conceives and gives birth to a healthy child. He stops treatment, and she again bears a syphilitic child, which on his resuming his mercurial course is followed by another healthy infant. Such cases certainly indicate that the syphilis of the mother, if any exists, is incapable of transmission to the child, as the effect of the treatment of the father is too direct and unvarying to admit of doubt.

The existence of this form of infection—syphilis by conception—has been vehemently denied by many authors²⁵—by some on the theoretical grounds that as the essential elements or carriers of the syphilitic virus have been shown to be cells or protoplasmic particles, and as, after conception, the embryo is supplied with serum, but not with cells of any kind, it is impossible that syphilis can be conveyed either to or from it;²⁶ by others on reported observations of numerous cases in which mothers who have been delivered of syphilitic children have shown no evidences of the disease.

²⁵ Kassowitz, Von Baerensprung, Bidenkap, and others.

²⁶ Bumstead and Taylor, op. cit., p. 742.

It would appear, however, that, setting aside arguments based on theoretical considerations, the weight of clinical evidence is altogether in favor of the frequent, if not the invariable, contamination of the mother through the medium of the foetus. No physician of large experience in this class of cases can fail to have seen some in which the husband, having had syphilis and having married after an insufficient interval or an imperfect course of treatment, has infected his wife with the disease, although at the time no discoverable symptom is to be found upon his body—no abrasion, sore, mucous patch, no lesion of continuity or suspicious point of any description. An equally careful inspection of the woman will also in such cases be attended by negative results—no initial lesion, no spot of induration, no adenopathy being at all discoverable—and yet she will be found with unmistakable evidences of constitutional syphilis.²⁷ There is a clue to all such cases which will immediately resolve the difficulty. In every instance, providing that no mistake has been made and that both husband and wife are really free—the one from any contagious lesion, the other from any evidence of a present or previous primary sore—it will be found that pregnancy has occurred; that the woman has either been delivered of a syphilitic child or has had an abortion or miscarriage at some time before the outbreak of the symptoms of syphilis. Although I am firmly convinced that this is a statement of facts based upon careful clinical observation, and although this view has received the unqualified endorsement of no less an authority than Fournier,²⁸ it is yet strongly combated by many excellent authorities. They say in reply to the above arguments that the reported cases are open to just criticism, that trifling and unnoticed lesions of the father—chafes or abrasions almost microscopic—suffice to transmit it on his part; while as an explanation of the supposed absence of the primary lesion in the mother they plead the well-known difficulty of discovering it in women under any circumstances.

²⁷ For a typical case see Colles's Works, New Sydenham Society, London, 1881, p. 253. From that date to this hundreds of such cases have been observed, and it would be idle to refer to them.

²⁸ Op. cit., pp. 26-30. He confesses to complete ignorance as to the precise method by which this contagion takes place, whether by poisoning of the fecundated ovule at the moment of conception (the theory of Von Baerensprung) or by exchanges of the utero-placental circulation, and regards the various hypotheses upon these points as without practical value.

Another argument, however, which seems to me to be unanswerable lies in the application to the case in question of the well-known "law of Colles," which from the date of its first enunciation by its distinguished expounder in 1837 down to the present day has been found to be absolutely without exception. I know of no other statement in reference to disease which is at once so sweeping and comprehensive in its bearings and so completely substantiated by clinical experience. It may be given in his own words: "One fact well deserving our attention is this: that a child born of a mother who is without obvious venereal symptoms, and which, without being exposed to any infection subsequent to its birth, shows this disease when a few weeks old,—this child will infect the most healthy nurse, whether she suckle it or merely handle and dress it; and yet this child is never known to infect its own mother, even though she suckle it while it has venereal ulcers of the lips and tongue."²⁹

²⁹ The Works of Abraham Colles, edited by Robert McDonnell, the New Sydenham Society, London, 1881, chap. xiii. p. 287.

As to the absolute and unvarying truth of this law there is no excuse for a shadow of doubt. To quote Mr. Hutchinson: "It has received the assent of every authority who has written on the subject since it was announced. It has attracted attention both at home and abroad, and I am not aware that a single exception to it has been recorded.³⁰ We have all of us seen chancres on the nipples of wet-nurses. They are, indeed, not very infrequent. We have, however, none of us seen such on those of the mothers of infected children. Let us remember that it is very unusual to put a syphilitic infant out to wet-nurse—a thing which no prudent physician would ever permit—and that, probably, for one so nursed a hundred are suckled by their mothers, and we can appreciate the weight which this entire absence of proof that mothers ever suffer bears. It amounts, I think, to all but proof that they are absolutely insusceptible."³¹

³⁰ The cases of Cazenave (1847), Cocchi (1858), Müller (1861), Ranke (1878), Guibout (1879), Scarenzio (1880), and Zingalès (1882), are defective in important particulars, the first two so much so as to render them valueless. Ranke's case is by far the strongest yet recorded, but lacks fulness and rests upon his unsupported testimony. (See Hill and Cooper, op. cit., p. 55, and Nouveau Dict. de Méd. et de Chir., vol. xxxiv. p. 687.)

³¹ Dr. J. N. Hyde suggests (Archives of Dermatology, April, 1878, p. 103) that "the full weight of Colles's law is to be estimated in connection with the question whether the child whose hereditary syphilis is derived from the mother exclusively is capable of infecting its healthy father; and if no instance of this latter can be adduced a higher law becomes defined—viz. that the child whose hereditary syphilis is transmitted by one parent only is incapable of infecting either." He explains this hypothetical immunity, in which he seems to believe, by saying that "it is probably due to the fact that the syphilis-bearing cell-element cannot readily be implanted upon the soil from which it sprang—a fact illustrated by the infecundity of consanguineous marriages and the non-auto-inoculability in general of the primary lesion of syphilis." When, however, we exclude the large number of cases in which the father is already syphilitic, and remember that in the others the contact between him and the child is slight, infrequent, and fleeting—being usually limited to an occasional kiss or caress—it does not seem strange that no instances of such infection have been reported; nor does the fact seem at all worthy of being made the foundation of a general law.

There can be but one rational explanation of these facts—viz. that the mothers who have thus acquired an immunity have done so by first acquiring the disease. It may, in those cases where no secondary symptoms appear, be in a modified form, due, as suggested by Mr. Hutchinson, to some heteromorphism or alternation of generations on the part of a specific fungus, or to the excessively small quantity of the poison which finds its way from child to mother, or to some other obscure cause with which we need not now concern ourselves. It is, at any rate, no more mysterious than the protective influence of vaccine in small-pox, and when one is rationally explained doubtless the other will be found to be closely allied in its mode of action. The fact which interests us at present is that it is in the highest degree improbable that anything but some form of syphilis itself could afford this entire protection, and that it is not in the least unreasonable, but, on the contrary, logical and consistent with all the known facts, to suppose that while in some cases no observable symptoms might be produced, in others where the cause was the same, but more active, or the powers of resistance less, the usual constitutional phenomena would be developed.

We may conclude, then, that the husband may infect his wife—(1) In the usual manner or by direct contagion; (2) through the medium of the child, or at any rate by the production of conception.

The theory upheld by Von Baerensprung, that the syphilis of the mother is imparted to her at the moment of impregnation, the disease being impressed upon the fecundated ovule, does not materially conflict with the above views, conception being in either case the essential factor, but in the latter instance the intervention of the foetus itself not being necessary. It has to support it the clinical fact that in those cases where syphilis appears during pregnancy the outbreak of symptoms occurs at about the ninth or tenth week after the date of conception, or a period which closely corresponds to that of the appearance of general symptoms after exposure to ordinary contagion—allowing about three weeks for the so-called incubation of the chancre and six weeks for the secondary incubation.³²

³² This has been shown not only by Von Baerensprung (Die Hereditäre Syphilis), but also by Diday, whose observations were intended to prove the possibility of syphilis being derived from the child by the mother—"choc en retour." In 24 cases the period at which the first eruption appeared in the mother averaged sixty-five days after conception; only once did the first signs appear after the fourth month of pregnancy.

It may also be said to be rendered probable by the following line of argument:

Colles's law, which is without exception, demonstrates that every woman who has had a syphilitic child has been herself infected, even if she has had no observable symptoms;³³

Cases are recorded, however, in which a woman having given birth to one or more syphilitic children, and therefore herself syphilitic, bears healthy ones in consequence of specific treatment administered to the father before and during the period of conception, she remaining untreated;³⁴

The determining cause, therefore, of the syphilis of the child is not the syphilis of the mother, but the condition of the fecundating germ of the father; and, as a corollary,

The determining cause of the syphilis of mothers in whom the disease follows conception is not by infection from the foetus through the utero-placental circulation³⁵ or otherwise, but is the diseased male procreative cell which becomes blended with the female ovule.³⁶

³³ It is obviously no explanation of the law of Colles to say that "it would seem to indicate that the escape of the mother is due to some occult, undiscernible change in her system" (Bumstead and Taylor, op. cit., p. 745).

³⁴ See foot-note, p. 262.

³⁵ On account of the absence of cellular elements in the fluid interchanged.

³⁶ An elaborate paper by Fraenkel (Archiv für Gynaekologie, 1873, vol. v. p. 1), based on twenty-one cases of childbirth, was written to prove by the condition of the placenta that direct infection of the child by the father was possible without the participation of the mother, and that when the latter became infected it was through the medium of the child (choc en retour). In fourteen of his cases the specific change in the placenta began in the foetal portion or affected it exclusively. These cases, however, as analyzed by Hill and Cooper (op. cit., p. 57), are altogether defective in important particulars. Of course to sustain his theory there should be indubitable evidence that the fathers were syphilitic, and that the mothers were not so. So far from this being the case, but one of the fathers was known to be syphilitic, while two of the mothers had evidences of constitutional syphilis at the date of childbirth, and nine others had markedly suspicious histories. The lesions of the placenta which are thought to be syphilitic consist in the development of papular or gummatous growths which give rise secondarily to inflammatory troubles affecting either the placenta itself or the placenta and the uterine mucous membrane.

If the premises are admitted the conclusions seem irresistibly to follow.

There is no proof whatever that the semen of a syphilitic man is contagious or can transmit the disease in any but the way above discussed. On the contrary, it has been shown experimentally³⁷ that it is entirely innocuous and non-inoculable.

³⁷ Mireur, Annales de Derm. et Syph., 1876, p. 77.

All other theories as to methods of contagion are so entirely hypothetical and unsupported by trustworthy evidence that we can afford to disregard them.

We may now consider the ways by which syphilis reaches the child, and they may be broadly classified into—

1. By descent from the father.

2. By descent from the mother.

3. By direct infection.

As a matter of course, the influence of the father upon the child, so far as regards heredity, ceases at the moment of conception; or, to be more exact, no subsequent condition of the male parent, no development or acquirement of disease, can exert any further effect. That the existence of active syphilis in the father may result in the transmission of the malady to the child can hardly be doubted. To be sure, there are numerous examples of cases where both wife and child have escaped though the husband showed at the time of conception very active secondary lesions. These, however, are exceptions, and do not in the least invalidate the rule that it is possible for a father to hand the disease directly to his child. There is no other possible interpretation of the cases already alluded to in which successive pregnancies in the same woman alternately resulted in healthy or in syphilitic children according as the father was or was not kept under specific treatment. Other arguments might be advanced, but that seems to me conclusive.