Scientific American, Vol. 62, No. 7 (1890)
A weekly American science and technology magazine from 1890, published in New York for inventors, engineers and general readers. Its pages mix small engraved illustrations of apparatus with dense classified advertising for tools, machines and patent services. The engravings show laboratory devices such as an electrical rocker on a stand and a battery-driven mechanism on a wooden base, drawn in fine black line with hatched shadows that a designer could borrow for technical diagrams. The advertisement layouts show bold condensed display lettering and boxed grids typical of the period.
