Graaf

Graaf, Regnier van (1641-1673), a Dutch physician and anatomist, was born at Schoonhoven. He studied at Leyden and in France, and took his M.D. at Angers in 1665, after which he practised at Delft. In 1663 he published a Treatise on the Pancreatic Juice, which brought him some renown. He studied much the organs of generation, and gave his name to his discovery of the Graafian vesicles of the ovum in 1672. His collected works were first published at Leyden in 1677.