(Adrian), an eminent physician, born in Holland. After having studied physic at Leyden, he went to Paris, where he acquired great reputation in his profession. He introduced in France the use of ipecacuanha in the cure of dysenteries; a remedy which he at first kept secret, but was ordered to make it public, and on that account received a gratification from the king of 1000 louis d'ors. He was made inspector-general of the hospitals in Flanders, physician to the duke of Orleans, regent of France, &c.; and died at Paris, in 1727, aged 65. He wrote a treatise on the most common diseases, and the remedies proper for their cure (the best edition of which is that of 1724, in two volumes octavo); and other works.

(John-Claude), son of the above, was born in 1683, and died in 1755. He was first physician to the queen, and greatly encouraged by the town as well as court. He was, like his father, inspector-general of the military hospitals. He was of the Academy of Sciences at Paris, of the Royal Society in London, and of the Academies of Prussia, Florence, and Bologna. He is the author of 1. Idee Generale de l'économie animale, 1722, 8vo. 2. Principia Physico-Medica, in tyronum Medicina gratiam confcripta, 2 vols. 8vo.

We may just mention also, that he is the father of the Mons. HELVETIUS, who wrote the celebrated book De l'Esprit; and whom Voltaire calls "a true philosopher;" but whose book was stigmatized by the authors of the Journal de Trevoux, and suppressed by the government.