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Scientific American, Vol. 29, No. 8 (1873) (1873)
leaf 15
preceding year exhibiting in i haparaae “ *“*T UBAL,” 1522 Popler St., Philadelphia, Pa. one view the General Prog- Adcress i—) sults ever obtained. In IVERVIEW ACADEMY, Poughkeepsie, practical use it is everywhere ress of the World in the fol- ROOT STEAM EN- ©} demonstrating its superfor- lowing… … N.B.—This detector 1s covered by two U. S. Patents, HE ‘Scientific American” is printed with Horizontel ond Upright Boriug Machines. SCIENCE RECORD FOR 1872, uniform with the Parties using or selling these instruments without au- (ey Superior to any in use. CHAS. EXEU JOHNSON & CO.'S INK. Tentnand…Internet Archive · Public domain (published before 1931). Free to use for anything.
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