Scientific American, Vol. 32, No. 11 (1875)
A weekly American periodical of 1875 aimed at general readers interested in science, invention and industry, printed in New York and carrying engraved diagrams of mechanical devices and natural subjects. Its pages show cutaway engineering drawings of a valve housing, a steam trap with floats and levers, a mechanism shown in close perspective, and a botanical study of a twig with swollen buds, giving a designer clear, hard-edged technical linework with strong contrast and crisp hatching.
