Scientific American, Vol. 33, No. 25 (1875)
Scientific American, volume 33, number 25, from 1875, is a weekly American periodical reporting on mechanical and engineering inventions for an general readership of inventors and engineers. Its pictures are black-and-white wood engravings of machines seen in three-quarter views and cutaway sections, with dense hatching that shows metal form and shadow, useful for designers studying Victorian industrial line work and mechanical detail.
