gutenberg.gopherspace.dk:73

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 (???) cientific American 
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 (DIR) Scientific  American, Volume XLIII., No. 25, December 18, 1880 A Week
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 (DIR) Scientific  American, Volume XXIV., No. 12,  March 18, 1871 A Weekly 
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 (DIR) Scientific  American, Volume XXXVI., No. 8, February 24, 1877 A Weekl
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 (DIR) Scientific American Supplement No. 819, September 12, 1891
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 (DIR) Scientific American Supplement No. 822, October 3, 1891
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 (DIR) Scientific American Supplement, No. 1082, September 26, 1896
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 (DIR) Scientific American Supplement, No. 1157, March 5, 1898
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 (DIR) Scientific American Supplement, No. 1178, June 25, 1898
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 (DIR) Scientific American Supplement, No. 275, April 9, 1881
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 (DIR) Scientific American Supplement, No. 286, June 25, 1881
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 (DIR) Scientific American Supplement, No. 288, July 9, 1881
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 (DIR) Scientific American Supplement, No. 299, September 24, 1881
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 (DIR) Scientific American Supplement, No. 303, October 22, 1881
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 (DIR) Scientific American Supplement, No. 312, December 24, 1881
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 (DIR) Scientific American Supplement, No. 315,  January 14, 1882
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 (DIR) Scientific American Supplement, No. 324, March 18, 1882
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 (DIR) Scientific American Supplement, No. 344, August 5, 1882
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 (DIR) Scientific American Supplement, No. 358, November 11, 1882
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 (DIR) Scientific American Supplement, No. 360, November 25, 1882
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 (DIR) Scientific American Supplement, No. 362, December 9, 1882
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 (DIR) Scientific American Supplement, No. 363, December 16, 1882
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 (DIR) Scientific American Supplement, No. 365, December 30, 1882
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 (DIR) Scientific American Supplement, No. 384, May 12, 1883
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 (DIR) Scientific American Supplement, No. 385, May 19, 1883
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 (DIR) Scientific American Supplement, No. 388, June 9, 1883
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 (DIR) Scientific American Supplement, No. 392, July 7, 1883
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 (DIR) Scientific American Supplement, No. 401, September 8, 1883
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 (DIR) Scientific American Supplement, No. 415, December 15, 1883
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 (DIR) Scientific American Supplement, No. 417, December 29, 1883
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 (DIR) Scientific American Supplement, No. 421,  January 26, 1884
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 (DIR) Scientific American Supplement, No. 430, March 29, 1884
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 (DIR) Scientific American Supplement, No. 433, April 19, 1884
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 (DIR) Scientific American Supplement, No. 441, June 14, 1884.
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 (DIR) Scientific American Supplement, No. 443,  June 28, 1884
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 (DIR) Scientific American Supplement, No. 446, July 19, 1884
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 (DIR) Scientific American Supplement, No. 447, July 26, 1884
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 (DIR) Scientific American Supplement, No. 455, September 20, 1884
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 (DIR) Scientific American Supplement, No. 458, October 11, 1884
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 (DIR) Scientific American Supplement, No. 460, October 25, 1884
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 (DIR) Scientific American Supplement, No. 470, January 3, 1885
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 (DIR) Scientific American Supplement, No. 481, March 21, 1885
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 (DIR) Scientific American Supplement, No. 483, April 4, 1885
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 (DIR) Scientific American Supplement, No. 484, April 11, 1885
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 (DIR) Scientific American Supplement, No. 488, May 9, 1885
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 (DIR) Scientific American Supplement, No. 492, June 6, 1885
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 (DIR) Scientific American Supplement, No. 497, July 11, 1885
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 (DIR) Scientific American Supplement, No. 508, September 26, 1885
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 (DIR) Scientific American Supplement, No. 514, November 7, 1885
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 (DIR) Scientific American Supplement, No. 520, December 19, 1885
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 (DIR) Scientific American Supplement, No. 530, February 27, 1886
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 (DIR) Scientific American Supplement, No. 531, March 6, 1886
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 (DIR) Scientific American Supplement, No. 561, October 2, 1886
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 (DIR) Scientific American Supplement, No. 586, March 26, 1887
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 (DIR) Scientific American Supplement, No. 595, May 28, 1887
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 (DIR) Scientific American Supplement, No. 598, June 18, 1887
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 (DIR) Scientific American Supplement, No. 601, July 9, 1887
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 (DIR) Scientific American Supplement, No. 611, September 17, 1887
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 (DIR) Scientific American Supplement, No. 613, October 1, 1887
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 (DIR) Scientific American Supplement, No. 620,  November 19,1887
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 (DIR) Scientific American Supplement, No. 623, December 10, 1887
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 (DIR) Scientific American Supplement, No. 633,  February 18, 1888
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 (DIR) Scientific American Supplement, No. 643,  April 28, 1888
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 (DIR) Scientific American Supplement, No. 647,  May 26, 1888
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 (DIR) Scientific American Supplement, No. 648, June 2, 1888.
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 (DIR) Scientific American Supplement, No. 664, September 22,1888
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 (DIR) Scientific American Supplement, No. 711, August 17, 1889
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 (DIR) Scientific American Supplement, No. 717,  September  28, 1889
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 (DIR) Scientific American Supplement, No. 787, January 31, 1891
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 (DIR) Scientific American Supplement, No. 794, March 21, 1891
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 (DIR) Scientific American Supplement, No. 795, March 28, 1891
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 (DIR) Scientific American Supplement, No. 799, April 25, 1891
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 (DIR) Scientific American Supplement, No. 803, May 23, 1891
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 (DIR) Scientific American Supplement, No. 810, July 11, 1891
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 (DIR) Scientific American Supplement, No. 821, September 26, 1891
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 (DIR) Scientific American Supplement, No. 829, November 21, 1891
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 (DIR) Scientific American Supplement, No. 832,  December 12, 1891
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 (DIR) Scientific American Supplement, No. 841, February 13, 1892
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 (DIR) Scientific American magazine Vol 2. No. 3 Oct 10 1846 The Advocate of
       By Various; Porter, Rufus, 1792-1884 [Editor]
 (DIR) Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry
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 (DIR) Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880 
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 (DIR) Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 187
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 (DIR) Scientific American, Vol. XXXIX.—No. 24. [New Series.], December 14, 
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 (DIR) Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877
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 (DIR) Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Jo
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 (DIR) Scientific American, Volume 22, No. 1, January 1, 1870 A Weekly Jour
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 (DIR) Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journ
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