Éléments de l'art de la teinture
A French treatise on dyeing by chemist Claude-Louis Berthollet, printed in Paris by F. Didot in 1791 for practical dyers and chemists. The picture here is only a University of Toronto library bookplate: a circular crest with a shield, a crown, a tree above, a ribbon reading VELUT ARBOR AEVO, and the words UNIVERSITY OF TORONTO around the rim, which a designer could borrow for a heraldic or seal-style emblem.
