al departments of Science and the speed steam engines incommon use fur electric lighting, DESCRIPTIVE PRICE LIST AND SAMPLES SENT FREE. Useful Arts, embracing Biology, Geclogy, Mineralogy, and permitting any number of lights to be shut off or H. W. JOHNS MFG. GO., 87 Maiden Lane, N.Y. Natural… … BUILDERS’ EDITION is issued monthly. $2.50 a year. 7th, 1876, No. 174,465, and January 30th, Single copies, 2 cents. Forty large quarto pages, equal MARVIN SAFE CO. 1877, No. 186,787. to about two handred ordinary book pages; forming a The transmission of Speech by all known large and splendid…
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