. Scientific American Volume 85 Number 06 (August 1901) . 8TEREOPTICONS, Search-Lightsand Accessories. We save you 7556Latest and most improved Newton, 344SixtliAv., Wm Dyke Jump Spark Coil, $ c Dyke Jumo Spark Plug, Dyke Mixers used instead of Vaporizers or Carburetters, $ Gasoline Engines for Boats, Sta- tionary Purposes, etc. Dyke manufactures Automobile Gasoline Enelnes from :\% h. p. to 10 h. p. Everything t<build automobiles. Send stamp for E* DYKE, Linmur Bldg, St. Louis, 2 yearsi experience supplying auto Forget


. Scientific American Volume 85 Number 06 (August 1901) . 8TEREOPTICONS, Search-Lightsand Accessories. We save you 7556Latest and most improved Newton, 344SixtliAv., Wm Dyke Jump Spark Coil, $ c Dyke Jumo Spark Plug, Dyke Mixers used instead of Vaporizers or Carburetters, $ Gasoline Engines for Boats, Sta- tionary Purposes, etc. Dyke manufactures Automobile Gasoline Enelnes from :\% h. p. to 10 h. p. Everything t<build automobiles. Send stamp for E* DYKE, Linmur Bldg, St. Louis, 2 yearsi experience supplying auto Forget Dykk Cakblkkttku. f THE LiATEST TICKLING MACHII Fun, Instruction andInvigoration combined. By express Si,00 ; By mail Si5 cents extra R. I. Telephone & Electric Co. 22 Calender St„ Providence, R. ELECTRO MOTOR. SIMPLE, HOW TO make. —By G. M. Hopkins. Description of a small elec-tric motor devised and constructed with a view to assist-ing amateurs to make a motor which might be drivenwith advantage by a current derived from a battery, andwinch would ha^e sufficient power to operate a footlathe or any ni& requiring not over one man pow-er. With 11 figures. Contained in Scientific Amer-ican Supplement, No. f>4l. Pnce 10 cents. To behad at this office and from ail newsdealers.


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Keywords: ., boo, bookcentury1900, bookdecade1900, booksubjectair, bookyear1901