439 



ners. Sir William Gell was formerly -Fellow of Emanuel College, 

 Cambridge, and was attached, for some time, in the quality of Vice- 

 chamberlain, to the late Queen Caroline. He spent the later years 

 of his life, a victim to the gout and other infirmities, at Naples, in 

 the neighbourhood of those remarkable ruins which he had so care- 

 fully and so beautifully illustrated, and which continued to supply 

 him, from day to day, with fresh objects of interesting inquiry. 



Dr. Warren, though one of the most distinguished physicians in 

 this metropolis, contributed very little, by his writings, to medical or 

 general literature: he was considered to be an accomplished classical 

 scholar, and a man of very extensive acquirements : he was a 

 strenuous vindicator of the character and independence of his pro- 

 fession, and though his manners were somewhat abrupt, and some- 

 times apparently uncourteous, yet he was a man of very warm 

 affections, and greatly beloved and respected by a large body of 

 friends. 



Those to whom Dr. William Elford Leach w^as known in his happier 

 clays, when in the full enjoyment of health and reason, can best ap- 

 preciate the great loss which the natural sciences and our national 

 museum sustained by that melancholy visitation, which, like the 

 hand of death, terminated his scientific labours. His enthusiastic 

 devotion to his favourite studies, his great knowledge of details, 

 combined with no inconsiderable talents for classification, were 

 eminently calculated to raise him to the very highest eminence as an 

 original and philosophical naturalist. Though his career of research 

 and discovery was prematurely cut short, yet we are chiefly indebted 

 to him for the first introduction into this country of the natural 

 system of arrangement in conchology and entomology, and for the 

 adoption of those more general and philosophical views of those 

 sciences which originated with Latreille and Cuvier. Dr. Leach was 

 the author of a paper in our Transactions on the genus Ocythoe, 

 to prove that it is a parasitical inhabitant of the Argonaut. He wrote 

 several memoirs in the Linnsean Transactions ; an excellent treatise 

 on British Malacostraca : and he also contributed largely to the 

 Zoological Miscellany, to Brewster's Encyclopaedia and to the French 

 Dictionnaire des Sciences Naturelles. He died of an attack of 

 cholera on the 25th of August last, at the Palazzo St. Sebastiano, in 

 the province of Tortona in Italy. 



The last name which occurs in the melancholy list of our departed 

 compatriot associates, is that of Dr. William Henry, to whom the 

 science of chemistry generally, and of gaseous chemistry in parti- 

 cular, is under great obligations. He was the author of nine papers 

 in our Transactions, many of them of great merit ; and his System of 

 Chemistry is one of the best written and best arranged compen- 

 diums of that important and extensive science, which has been pub- 

 lished of late years, whether in our own language or in any other. 

 The Memoirs of the Manchester Society are chiefly indebted to 

 him, in conjunction with Dr. Dalton, for the high character which 

 they have so long maintained. Dr. Henry, like Dr. Wollastou, made 

 the results of science, obtained by the most original and diffi- 



