On receipt of 25 cents we will send by mail, postage paid, a Hack Saw Frame and one Star Blade for cutting iron. This blade will cut off a half inch bar of iron more than one hundred times without sharpening, and at the rate of two cuts per minute.
For 15 cents we will send a Keyhole Saw Handle and one Star Blade for cutting wood. These blades are all 9 inches long, and one dozen of either kind will be sent at any time for 70 cents. We warrant these patent saws to be very much better than any other kind in market. They will come into more general use than files when once introduced. Hardware dealers every where will furnish them on request.
Millers Falls Co.
Warranted equal to any in Power and Economy, and superior to all in Simplicity, and Compactness. Gives an Impulse at every Revolution.
$10.00 to $50.00 per night. A light and profitable business. Magic Lanterns and Views of popular subjects. Catalogues on application. Part 1 Optical, 2 Mathematical, 3 Meteorological, 4 Magic Lanterns, etc. L. MANASSE, 88 Madison, Street, Chicago, Ill.
ICE-HOUSE AND REFRIGERATOR. Directions and Dimensions for construction, with one illustration of cold house for preserving fruit from season to season. The air is kept dry and pure throughout the year at a temperature of from 34° to 36°. Contained in Scientific American Supplement No. 116. Price 10 cents. To be had at this office and of all newsdealers.
Artesian Wells Bored. Superior Stationary Engines, specially adapted to Electric Light purposes. Built by Pa. Diamond Drill Co., Birdsboro, Pa.
WITHERBY, RUGG & RICHARDSON. Manufacturers of Patent Wood Working Machinery of every description. Facilities unsurpassed. Shop formerly occupied by R. Ball & Co., Worcester, Mass. Send for Catalogue.
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CHUCKS
CHARLES H.
BESLY & CO.
175-177 LAKE ST.
CHICAGO.
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ASBESTOS CEMENT FELTING.
AIR-CHAMBER COVERING.
LOCOMOTIVE LAGGING.
ASBESTOS LINING FELT.
Samples and Illustrated Pamphlet Steam Saving and Fire-Proof Materials Free by Mail.
H. W. JOHNS MANUFACTURING CO.,
SOLE MANUFACTURERS OF
H. W. Johns' Fire and Water-Proof Asbestos Roofing, Sheathing, Building Felt, Asbestos Steam Packings, Boiler Coverings, Roof Paints, Fire-Proof Paints, etc. VULCABESTON. Moulded Piston-Rod Packing, Rings, Gaskets, Sheet Packing, etc.
Established 1858. 87 MAIDEN LANE, NEW YORK. CHICAGO. PHILADELPHIA. LONDON.
SAWS Wanted 50,000 Sawyers and Lumbermen to send us their full address for a copy of Emerson's Book of SAWS. We are first to introduce Natural Gas for heating and tempering Saws with wonderful effect upon improving their quality and toughness, enabling us to reduce prices. Address EMERSON, SMITH & CO. (Ltd.), Beaver Falls, Pa.
The most successful Lubricator for Loose Pulleys in use. VAN DUZEN'S PATENT LOOSE PULLEY OILER. Highly recommended by those who have used them for the past two years. Prices very reasonable. Every user of machinery should have our "Catalogue No. 55;" sent free. VAN DUZEN & TIFT, Cincinnati. O.
By using Soper's Instantaneous Guide. Any person can play a tune on either instrument at once without the aid of a teacher. No previous knowledge of music whatever required. Send for book of testimonials free. Address G. K. HEARNE & CO., P. O. Box 1487, New York.
Agents for Fay's "Yankee" CALIPERS
AND
Barnes' Foot Power Machinery,
AND DEALERS IN
Machinists' Supplies of Every Kind.
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Address JOHN A. ROEBLING'S SONS, Manufacturers, Trenton, N. J., or 117 Liberty Street, New York.
Wheels and Rope for conveying power long distances. Send for circular.
CALLED THE STANDARD —As it is the Packing by which all others are compared.
Accept no packing as JENKINS PACKING unless stamped with our "Trade Mark."
{71 John Street, N. Y.
{105 Milk Street, Boston.
{13 So. Fourth St., Phila.
Best in principle, workmanship, and materials.
An unequaled small Motor adapted to all uses.
When the motor is not at work, the expense of running it ceases.
Simple, Safe, Economical, Durable. No extra insurance.
Four sizes: 1 H. P., ½ H. P., 1 man power, and Dental Engine.
These Engines are especially suited for Gasoline Gas for country use.
Send for Illustrated Catalogue.
ECONOMIC MOTOR CO.,
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Made entirely of ASBESTOS.
Absolutely Fire Proof.
BRAIDED PACKING, MILL BOARD, SHEATHING, CEMENT, FIBRE AND SPECIALTIES.
CHALMERS-SPENCE CO., FOOT E. 8TH ST., N. Y.
Manufacturers and Sole Proprietors of
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Consisting of Violin Box, Bow, and Teacher, sent to any part of the United States on 1 to 3 days' trial before buying.
Violin Outfits at $4, $8, $15 and $25 each. Send Stamp for Beautiful Illustrated 96-page Catalogue of Violins, Guitars, Banjos, Cornets, Flutes, Strings, etc. Lowest prices. Mail orders a specialty. C. W. STORY, 26 Central Street, Boston, Mass.
ICE HOUSE AND COLD ROOM.—BY R. G. Hatfield. With directions for construction. Four engravings. Contained in Scientific American Supplement, 59. Price 10 cents. To be had at this office and of all newsdealers.
OPERA GLASSES Microscopes, Telescopes, Spectacles, Barometers, Thermometers, Photographic Outfits for Amateurs, W. H. WALMSLEY & CO. successors to R. & J. Beck, Philadelphia. Illus. Price List free to any address.
Bibb's Celebrated Original
BALTIMORE
FIRE-PLACE HEATERS,
To warm upper and lower rooms.
The handsomest, most economical
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B.C. BIBB & SON
Foundry Office and Salesrooms,
39 and 41 Light Street,
Baltimore, Md.
Marbelized Slate Mantels.
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We make a great variety of Presses, with powers from 50 to 700 tons, with movement of platens from one inch to six feet or more, to work by hand or power, and at any speed required. Send for catalogue.
This Company owns the Letters Patent granted to Alexander Graham Bell, March 7th, 1876, No. 174,465, and January 30th, 1877, No. 186,787.
The transmission of Speech by all known forms of Electric Speaking Telephones infringes the right secured to this Company by the above patents, and renders each individual user of telephones not furnished by it or its licensees responsible for such unlawful use, and all the consequences thereof, and liable to suit therefor.
Gap Lathe, $125.
Foot and Power Lathes, Drill Presses, Scroll-saw Attachments, Chucks, Mandrels, Twist Drills, Dogs, Calipers, etc.
Lathes on trial. Lathes on payment.
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Address H. L. Shepard, Agent, 134 E. 2d St., Cincinnati, O.
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1 The Cowles electric smelting process, heretofore described by us, has only produced aluminum alloys as yet, and it is doubtful whether it can be made to do more than this.
2 See Scientific American Supplement, Nos. 579 and 580, for fully illustrated article on this subject.
Inconsistent spelling and hyphenation are as in the original.