HELVETIUS (John-Claude), son of the above, was born in 1685, 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. Idée Générale de l'économie animale, 1722, 8vo. 2. Principia Physico-Medica, in tyronum Medicina gratiam conscripta, 2 vols. 8vo.
We may just mention also, that he is the father of the Monf. 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.