Scientific American, Vol. 85, No. 4 (July 1901)
A weekly issue of Scientific American from July 1901, published in New York for American inventors, engineers and general readers following new patents and machinery. The 41 pictures are wood-engraved and halftone machine studies — stationary gas engines, railway brake rigging seen head-on, treadle-driven lathes and bench-mounted optical apparatus — drawn in clean line with hatched shading, useful for cutouts, spot illustration and technical texture.
