FONTANA, Felice (1730-1805). Opuscoli scientifici, Florence: Gaetano Cambiagi, 1783, 8° (215 x 135mm.), FIRST EDITION, uncut (some occasional soiling & slight spotting, lower outer margin lightly dampstained), original limp boards (tear to spine, spine label partly torn away, front cover lightly stained) -- Antoine François de FOURCROY (1755-1809). Leçons élémentaires d'Histoire naturelle et de Chimie, Paris: 1782, 2 volumes, 8° (196 x 122mm.), FIRST EDITION, four folding tables, one folding plate (few leaves lightly browned, occasional spotting), contemporary mottled calf, gilt decorated spines (head and tail of spines chipped, slight wear along joints, corners bumped). With 7 other books. (10)