Leçons de chimie appliquée à la teinture
A chemistry textbook for dyers by Michel Eugène Chevreul, published in Paris in 1829 by Pichon et Didier. The single plate, labelled PL. 3, shows numbered laboratory apparatus in fine black-line engraving: a furnace with a retort and condenser, flasks, graduated tubes, a funnel and a bent glass tube. A designer could take its tidy scientific diagram layout, with lettered callouts and fig. labels set in a grid, as a model for technical instructional plates.
