Felix Vicq D'Azyr, a French physician, born at Valogne, Normandy, April 28,1748, died in Paris, June 20,1794. In 1765 he went to Paris to complete his studies, and in 1773 he opened public courses of lectures on human and comparative physiology; but the jealousy of other professors finally obliged him to give private lectures. Daubenton, whose niece he had professionally attended and then married, enabled him to extend his sphere of activity. He was admitted to the academy of sciences in 1774, and Lassonne, the king's physician, employed him in official investigations of the murrain then raging in southern France, which ultimately led to the establishment of the royal medical society, of which he became perpetual secretary. In this capacity he delivered eulogies on Linnaaus, Franklin, and others. In 1788 he succeeded Buff on in the French academy, the annals of which he enriched with numerous contributions. In 1789 he became first physician to Marie Antoinette. His devotion to her gave umbrage to the revolutionists, and they obliged him to attend Robespierre's festival of the Supreme Being (June 8, 1794), an ordeal which gave the final blow to his shattered health.

His works include La médecine des betes d corne (2 vols., 1781); Traité d'anatomie et de physiologic, and Systeme anatomique des quadrupédes (2 vols., 1786-'92); and Sys-. téme anatomique (4 vols., 1791-1822). Moreau (de la Sarthe) delivered a eulogy on him in 1797, and Lemontey in 1827; Moreau edited a collection of his works (6 vols., 1805).