His first great performance was the Natural History of Sea Fishes, with wood engravings, containing a figure and description of the dolphin, and several other species of the same family. It was published at Paris in 1551, in quarto. In 1553, he gave to the world another work on fishes, entitled De Aquatitibus Libri Duo, cum Eiconibus ad Vivam ipsorum Effigiem, which he afterwards translated into French, and with certain additions printed in three different forms in 1555. A work on pines and other evergreen trees, De Arboribus Coniferis, also appeared in 1553, as well as a dissertation on Egyptian antiquities. Soon after he presented to the public his Observations de plusieurs Singularites et Choses memorables, trouvees en Grece, Asie, Judee, Egypte, Arabie et autres Pays etranges, redigees en trois livres, in which are many curious details on the subject of geography, and on the manners of Eastern nations. A treatise on birds was published at Paris in 1555; another, containing representations of animals and plants observed in Arabia and Egypt, was put forth in 1557; which in 1558 was succeeded by an essay on the cultivation of plants. As a botanist, Belon ranks not less highly than as a zoologist; and, to do honour to him in the former capacity, Plumier has dedicated to his memory an American genus, to which he has given the name of _Belonia_. HIPPOLITO SALVIANI. The Aquatilium Animalium Historia of Salviani is chiefly remarkable for the beauty of its engravings, some of which have scarcely been surpassed by the efforts of modern art. The titlepage bears the date of 1554, but the work was not completed till 1558. It contains descriptions of ninety-nine species of fishes, each including the synonymy, the external appearance of the animal, the places in which it occurs, its habits, the manner in which it is caught and prepared, and its medical properties. He also points out the passages in Aristotle, Pliny, and other ancient writers, who have spoken of them, and to the observations of these authors adds many excellent ones of his own; so that the work, on account of the general accuracy of the plates and descriptions, is one that may be considered indispensable to the modern ichthyologist. Salviani was born in 1514, at Citta di Castello in Umbria. His family was noble. After finishing his studies, he settled at Rome, where he practised medicine, and delivered public lectures. The friendship of Cardinal Cervini obtained for him the appointment of physician to the pope, Julius III. The death of this personage, and that of Cervini, who had been elevated to the apostolic chair, which, however, he occupied only three weeks, were not productive of any serious disadvantage to him, for he was continued in his offices by Paul IV., to whom he dedicated his work. He died at Rome, in 1572, at the age of fifty-eight. GUILLAUME RONDELET.