time removed to Lausanne, where the senate of Berne appointed him Greek professor, in which office he continued three years. He then went to Montpellier, where he engaged more particularly in the study of anatomy and botany, and formed an intimate acquaintance with the celebrated Laurent Joubert and the naturalist Rondelet. In 1541, he obtained the degree of doctor in medicine at Basil, where he arranged some extracts respecting botany and physic, taken from Greek and Arabian writers, which were published the following year at Zurich and Lyons; in the former of which places he now took up his residence and engaged in professional practice. Soon afterwards, he published a catalogue of plants in four languages, in which he evinced his extensive knowledge of botany, which was subsequently increased by several excursions among the Alps. In 1545, he made a journey to Venice and Augsburg, where he enjoyed some valuable opportunities of consulting rare works and manuscripts. The same year, he commenced the publication of his famous Bibliotheca Universalis, which contains a catalogue of all the works then known, whether extant or lost. Several other fruits of his industry appeared successively between this period and the year 1555, when his merits induced the magistrates of Zurich to appoint him professor of natural history. The Emperor Ferdinand I., to whom he dedicated one of his works, the History of Fishes, rewarded him with various marks of his esteem. These, however, he did not long enjoy, as he fell a victim to a pestilential disease which, commencing at Basil in the spring of 1564, afterwards broke out in his native city with increased violence. When attacked by this fatal malady he betook himself to his cabinet, for the purpose of arranging his papers, and in this occupation died on the 13th December 1565, at the age of 49 years and a few months; leaving a widow who had participated in his adversity and prosperity, having been married by him when he acted as grammar-teacher at Zurich. He bequeathed his library and manuscripts to Caspar Wolf, his pupil, with injunctions to print all that could be rendered fit for the public eye. His principal work is the Historia Naturalis Animalium, chiefly composed of extracts from Aristotle, AElian, and Pliny, without order or discrimination, but intermixed with numerous original observations, and illustrated by rude engravings. It consists of five books, and forms four folio volumes. There is an English translation by Topsell of part of it under the name of The History of four-footed Beasts and Serpents, collected out of the Writings of Conradus Gesner. Down to the end of the seventeenth century his compilations were held in the highest estimation in every department of zoology: they are now considered as objects of curiosity rather than stores of useful knowledge.--The three next of whom mention is to be made were chiefly eminent as ichthyologists. PIERRE BELON.