410 Linnean Society. [May 24, 



recovered. The result of his dredging operations was communicated 

 to the Meeting of the British Association at Cork, in a " Report on 

 the Mollusca and Radiata of the ^gean Sea, and on their Distribu- 

 tion, considered as bearing on Geology." Before his return to 

 England, he had been appointed to succeed Mr. Don as Professor of 

 Botany in King's College, London ; and about the same time he also 

 became Curator of the Museum of the Geological Society. Both 

 these appointments he regarded as of high importance in reference 

 to the career which he proposed to himself, — the first, as affording 

 him an excellent opportunity of cultivating his talent for oral in- 

 struction ; and the second, as furnishing the means of study in the 

 department of Palaeontology, to which he attached himself with so 

 much ardour and success, that in 1845 he had well qualified himself 

 to exchange his Curatorship for the office of Palaeontologist to the 

 Geological Survey, and Lecturer on Natural History in the Govern- 

 ment School of Mines, posts which he worthily filled for nearly the 

 whole remainder of his life. He became a Fellow of the Linnean 

 Society in 1843, and of the Royal Society in 1845 ; and communi- 

 cated to our 'Transactions' a memoir "On the Radiata of the 

 Eastern Mediterranean," published in the 19th volume, as well as 

 several short notices to our ' Proceedings,' the last of which, read in 

 1848, is " On some Peloria varieties of Viola canina." The prin- 

 cipal separate works on which he was engaged during this period 

 are his 'Monograph on the British Naked- eyed Medusae,' fol. 1848, 

 published by the Ray Society ; and his ' Natural History of the 

 British Mollusca,' 4 vols. 8vo, written in conjunction with Mr, Syl- 

 vanus Hanley. But by far the greater part of his labours, and 

 those which contributed most to extend his scientific reputation, 

 are contained in the ' Reports of the British Association,' the 

 ' Memoirs of the Geological Survey,' the ' Journal of the Geolo- 

 gical Society,' the ' Annals of Natural History,' the ' Edinburgh New 

 Philosophical Journal,' and other periodical publications. Of his 

 works, including these separate papers, no fewer than seventy-nine 

 are enumerated in the ' Bibliographia ZoologiBe et Geologise ' of the 

 Ray Society, and the list might have been considerably extended. 

 From the period of his appointment as Palaeontologist to the Geolo- 

 gical Survey, he devoted much of his time to the arrangement of the 

 fossil collection now so advantageously displayed in the Museum in 

 Jermyn Street. He also took an active part in the Great Exhibition 

 of 1851, and contributed greatly to the interest of the Natural- 

 History department of the new Crystal Palace at Sydenham. In 

 1848 he married the youngest daughter of the late General Sir C. 



