LINNEAN SOCIETY OF LONDON. XXXV 



Doctor of Medicine ; and in 1837 he became a Fellow of the Eoyal 

 Society, of which he was afterwards for a time a Vice-President. 

 He also became a Fellow of the Geological Society, in which 

 for several years he filled the office of one of its Secretaries; 

 latterly, for several years, he was Secretary of the Horticultural 

 Society, in the business and well-being of which he always took 

 the most lively and active interest ; and for several of the later 

 years of his life he was Secretary of the British Association for 

 the Advancement of Science. The signal success with which he 

 had studied the materia medica of the East led to his being 

 appointed to fill the chair of that branch combined with Thera- 

 peutics, in King's College, when vacated by the late Dr. Paris ; and 

 the introductory lecture to his first course in that institution 

 formed the basis of an essay " On the Antiquity of Hindoo Me- 

 dicine," published in 1837. About the same time he was united 

 in marriage to a lady of highly cultivated intellect, daughter 

 of the late Edward Solly, Esq., who became the earnest and 

 competent partner of all his subsequent labours : never was a 

 man of science more fortunate in his domestic ties. In 1840 he 

 published an "Essay on the Productive Eesources of India," a 

 work of high importance in an economical point of view, and the 

 basis of aU that has since been written on the subject. In 1844, 

 being Dean of the Faculty of Medicine at King's College, he was 

 requested to publish his introductory lecture " On Medical Edu- 

 cation;" and in 1847 he published, in a thick 12mo volume, for 

 the use of his pupils, " A Manual of Materia Medica and Thera- 

 peutics," which became widely popular, on account of the unusual 

 pains taken in the elaboration of the botanical and commercial 

 history of the various substances. A second edition was published 

 in 1853, and a third in 1856, both in 8vo, the last " revised and 

 enlarged by F. W. Headland." In the changes which took place 

 in the Eoyal Society about the year 1847, he took an active part, 

 and was one of the founders of the Philosophical Club, established 

 in that year. Besides the societies connected with the cultivation 

 of natural science, he took an active share in the business of the 

 Eoyal Asiatic Society, and with habitual energy soon struck out 

 a new branch of inquiry in it. The 'Transactions' of that learned 

 body had hitherto been directed chiefly to the languages, history, 

 mythology, archaeology, and numismatics of the East. At the 

 instance of Dr. Eoyle, a committee was organized for the investi- 

 gation of the productive resources of India, and a series of valu- 

 able communications upon interesting commercial objects, either 



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