Andrea_Cesalpino--Jean_Henri_Fabre

Andrea Cesalpino (Latinized as Andreas Cæsalpinus) (1524/1525 – 23 February 1603) was a Florentine physician, philosopher and botanist.In his works he classified plants according to their fruits and seeds, rather than alphabetically or by medicinal properties. In 1555, he succeeded Luca Ghini as director of the botanical garden in Pisa. The botanist Pietro Castelli was one of his students. Cesalpino also did limited work in the field of plant and animal physiology. In medicine, he envisioned a "chemical circulation" consisting of repeated evaporation and condensation of blood, and for this reason historians have conceived him as a forerunner of William Harvey (1578–1657), who theorized the "physical circulation" of blood in 1628.