(John le), a most celebrated writer and universal scholar, born at Geneva in 1657. After he had passed through the usual course of study at Geneva, and had lost his father in 1676, he went to France in 1678; but returning the year after, he was ordained with the general applause of all his examiners. In 1682, le Clerc visited England with a view to learning the language. He preached several times in the French churches in London, and visited several bishops and men of learning: but the smoky air of the town not agreeing with his lungs, he returned to Holland, within the year, where he at length settled. He preached before a synod held at Rotterdam by the remonstrants in 1684; and was admitted professor of Philosophy, polite literature, and the Hebrew tongue, in their school at Amsterdam. The remainder of his life affords nothing but the history of his works, and of the controversies he was engaged in; but these would lead into too extensive a detail. He continued to read regular lectures, and because there was no single author full enough for his purpose, he drew up and published his Logic, Ontology, Pneumatics and Natural Philosophy. He published Ars Critica; a Commentary on the Old Testament; a Compendium of Universal History; an Ecclesiastical History of the two first Centuries; a French Translation of the New Testament, &c. In 1686, he began, jointly with M. de la Crofe, his Bibliothèque Universelle et Historique, in imitation of other literary journals; which was continued to the year 1693, inclusive, in 26 vols. In 1703, he began his Bibliothèque Choise, and continued it to 1714, and then commenced another work on the same plan called Bibliothèque ancienne et moderne, which he continued to the year 1728; all of them justly deemed excellent stores of useful knowledge. In 1728, he was seized with a palsy and fever; and, after spending the last five years of his life with little or no undertaking, died in 1736.

(Sebastian le), engraver and designer in ordinary to the French king, was born at Metz in 1637. After having learnt designing, he applied himself to mathematics, and was engineer to the marshal de la Ferté. He went to Paris in 1665, where he applied himself to designing and engraving with such success, that M. Colbert gave him a pension of 600 crowns. In 1672, he was admitted into the royal academy of painting and sculpture; and in 1680 was made professor of geometry and perspective in the same academy. He published, besides a great number of designs and prints, 1. A Treatise on theoretical and practical practical Geometry, A Treatise on Architecture, and other works; and died in 1714. He was an excellent artist, but chiefly in the petit style. He immortalized Alexander, and Lewis XIV. in miniature. His genius seldom exceeds the dimensions of six inches. Within those limits he could draw up 20,000 men with great dexterity. No artist except Callot and Della Bella, could touch a small figure with so much spirit.