Scientific American, Vol. 32, No. 2 (1875)
Scientific American volume 32 number 2 from 1875 is a weekly American periodical of technology and invention, reporting new machines and engineering for a general readership of inventors and engineers. Its pictures are steam engines, a vertical boiler on wheels and a large naval gun, drawn in fine engraved line with clear labelled figures, showing how a designer might render mechanical parts with crisp hatching and exact proportion.
