Scientific American, Vol. 42, No. 2 (1880)
Scientific American volume 42, number 2, from 1880, is a weekly American periodical of mechanical and scientific news for an engineering and general readership. Its engraved pages show new inventions: an incandescent electric lamp with a hand adjusting it, an armillary-style globe on a carved tripod, a brick-lined well with a hand pump, and a telephone exchange in New York City with operators at switchboards. A designer might take the crisp black-line engraving and the dense, technical diagram layouts as models for instructional graphics.
