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as a mining engineer, and had published a treatise on enamelling, 

 which attracted the attention of M. Berthollet, and procured for him 

 the appointment of the porcelain works at Sevres, which he held till 

 his death. In 1807 he published his "Traite elementaire de Mi- 

 neralogie,'' a work which still maintains its high character. He 

 was also an eminent student in zoology and geology, on which latter 

 subject he is known by his work, published in 1822, in conjunction 

 with Cuvier, on the geology of the environs of Paris. 



He was elected a Member of the French Academy in 1815, and 

 in the same year he became a Foreign Member of the Royal Society, 

 of London. In June, 1825, he was elected an Honorary Member 

 of this Academy. 



In practical science he is known by his works on pottery, sug- 

 gested by his situation as superintendent of the great manufactory 

 at Sevres.* 



We have also to record the decease of another eminent Hono- 

 rary Member, Dr. Thomas Taylor, who was carried off, by fever, 

 in the early part of last month. 



Dr. Taylor was one of the most distinguished cryptogamic bo- 

 tanists of the present day. Ardently attached to botany from very 

 early years, and endowed with an acute eye, and keenly-discrimi- 

 native powers of mind, he soon became known as an observer ; and 

 to his researches the Irish Flora is indebted for the detection of a 

 large number of new species. 



These researches continued with unabated zeal through life. 

 In 1818, in conjunction with Sir William Hooker, he published the 

 " Muscologia Britannica," a work which, for accuracy and clearness 

 has seldom been surpassed, and which is still the best guide to a 

 knowledge of the British mosses. In 1 827 it went through a second 

 edition. His other botanical writings are: an elaborate monograph of 

 the Marchanticce, published in the seventeenth volume of the Trans- 

 actions of the Linneean Society of London ; the articles Mosses and 

 Lichens in the Flora Hibemica ; and numerous papers in Hooker's 

 London Journal of Botany, chiefly on exotic cryptogamia. Besides 



* Sec the notice of M. Brogniart, in the Address delivered by the Mar- 

 quis of Northampton to the Royal Society, on the 30th of Noyember last. 



