La generation ou exposition des phenomenes relatifs a cette fonction naturelle de leur mechanisme, de leurs causes respectives et des effets immediats qui en resultent

French first edition and first translation into vernacular after the original Latin, which had appeared in the Elementa physiologica in 8 volumes, published from 1757 to 1766.

Full speckled blonde calf bindings. Raised band spines with ornamentation. Red morocco title and volume labels. Head caps worn, same for the foot cap of volume 2. Two corners bumped on volume 2. Volume label of volume 1 missing. Some leaves yellowed.

Important study devoted to the phenomena of generation, fertilization and embryology, with a description of sexual organs and their function. By establishing a state of contemporary knowledge, Haller refutes certain previously established theses, notably that of Malpighi, and establishes new ones, clarifying the way in which new individuals come into the world.