DV/It or forfeit MOO. New articles are Just pat- instruction in Telegraphy—also contains the largest Il- BbtS X OAQB COCKS, RBGULATOBS er*ed. Samples sentfree to all. Address lustrated Catalogue of Telegraph and Electr^calBatte- MVRRILL & KEIZER, 44 BollldaT St.. Ball (TmHoIj li E CoidiiiA !ta^… … Thounand Six Hundred Engravings. The wide scope of this splendid work. Its surprising variety of contents, ■>-■" MATERIALS. ^^ its wealth of illustration, render It the most valuable contribution to scientific literature extant, while in price it Is probably the most economical. The Scientific…
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