Scientific American, Vol. 25, No. 3 (July 1871)

1871 · 6 pictures

Patents · Zinc · Munn · Railroad · Scientific American · Iron · Horse power · Foot pounds · Specific gravity · Outer tines · Cubic centimeters · Hot air · Vulcanized rubber · Steam engine · Evaporating medium

Internet Archive · Public domain (published before 1931) · More from this library