Scientific American, Vol. 40, No. 2 (1879)
Scientific American volume 40, number 2, a weekly American periodical of 1879 aimed at inventors, engineers and general technical readers. The pictures are wood-engraved line drawings of machines and devices, labelled with Fig. numbers and set in plain, technical layouts. A designer could take from them the diagrammatic clarity of nineteenth-century mechanical drawing, with its hatched shading, cutaway views and small lettered callouts.
