Inside Out Library · Explore

Scientific American, Vol. 40, No. 9 (March 1879) (1879)

leaf 3

An illustration from Scientific American, Vol. 40, No. 9 (March 1879), 1879, leaf 3
tion the nails are washing, and was told that an old negro woman whose again tumbled, and are finally conveyed to the assorting room, only gold medals ever awarded for horseshoe nails. great skill in polishing linen made her very popular with whe!;e each nail receives individual attention. Those… … number to the clocks to be regulated. From here the air Pig. 1.—PNEUMATIC REOTTLATOR POR CLOCKS Fig. 2.-PNEUMATIC CLOCK. acts directly on the gearing the least imperfection are rejected, and only the absolutely of the second and minute hands of the cloclts. The fur- afflicted by arsenic poison…

Patents · Iron · Labor · Specimens · Scientific American · Machinery · American export · Address munn · Export edition · Trade catalogs · Electric light · Horse power · Years ago · Accompanying engraving · Sewing machine

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 40, No. 9 (March 1879)

More like this