L'optique
A late nineteenth-century French popular science book on optics, written by Fulgence Marion and published in Paris by Hachette in 1890 for general readers and students. Its engravings show instruments such as a sliding-tube apparatus with a mounted lens, a large telescope on a wooden stand with observers, a horse-drawn or hand-pushed wheel vehicle in a landscape, and a line diagram of light rays passing through a prism and an eyepiece; a designer might take their crisp hatched linework, dark mechanical silhouettes and clear diagram conventions.
