PROCEEDmGS OF SOCIETIES. 163 



Societies, and was on tlie Council of the former at the time of his 

 death, which took place at Clapham on the 4th March, 1875, from 

 typhoid fever supervening on an attack of inflammation. He was elected 

 a Fellow of this Society on the 12th June, 1867. 



Henry Turberville joined this Society on the 14th November, 

 1866, and died August, 1875. He devoted much time and money to 

 the collection of object-glasses best adapted to display lined objects, 

 and up to his death exhibited great interest in every optical contrivance 

 likely to facilitate this result. 



Thomas Henry Hennah was the eldest son of Mr. Thomas 

 Hennah, of the H.E.I.C., and was at the time of his death, January 

 8th, 1876, in his fiftieth year. 



He took up his residence in Brighton about twenty-five years since, 

 and turned his attention to i^hotograjjhy, then in its infancy. After 

 carrying on a series of experimeuts, he entered into partnership with 

 Mr. Kent, and founded the firm of " Hennah and Kent," which from 

 the excellence of their productions attained a Eui-opean reputation. 

 He was the first to introduce to Brighton the Talbotype process, and 

 to improve up 'in it so much that at the request of the Photographic 

 Society of London, of which he was a Council member, he detailed 

 his improvements in printing. A small manual on the Negative 

 Process, published by Mr. Hennah, is still a text-book. About twenty 

 years ago he became a member of the Brighton and Sussex Natural 

 History Society, and in 1861 was elected on the Committee, and in 

 1869 was made President of the Society ; in accordance with the rules 

 of the Society, on retiring from the Presidency he became a Vice-Presi- 

 dent, and held that office up to his death. The first paper communi- 

 cated to that Society was in April, 1870, on " Soundings made by Sir 

 Edward Parry in the Arctic Seas, in 1818." During his year of office, 

 and mainly through his exertions, a Microscopical Section, " which 

 should provide further study of objects connected with the use of the 

 microscoj)e," was added to the Society, and in September, 1870, it was 

 determined to continue its meetings once a month, but as a part of 

 the organization of the Society. (They have continued since, and the 

 Society meetings are bi-monthly instead of monthly.) The inaugural 

 address to the Microscopical Section was delivered by Mr. Hennah, 

 May 26, 1870, on " Systematic recent Examinations with Moderate 

 Powers." So long as health and strength would allow he was a 

 regular attendant at the microscopical meetings, and read before the 

 Society papers on the following subjects : " Gundlach's Lenses," Dec. 

 22, 1870 ; " Animal Parasites— Entozoa," Nov. 23, 1871 ; " Palates 

 of MoUusea," Feb. 22, 1872; "Minute Crustaceans," June 27, 1872 ; 

 " New Series of Lenses, by Wenham," Sept. 26, 1872 ; " Scales of 

 Fish," April 24, 1873; "Illumination," March 26, 1874. 



In addition to the foregoing papers, he gave practical lessons to 

 the members in mounting and section cutting, and the preparation of 

 objects for the microscope, and contributed to the Society's cabinet 

 many fine preparations made and mounted by himself. 



In conjunction with Dr. Addison, F.E.S., he formed, in 1860, 

 a small Microscopical Club, the members of which met at each 



