ANNIVERSARY ADDRESS. 17 



4__« On the Tin Deposits of New South Wales," by S. Herbert 

 Cox, F.C.S., F.G.S. ; '' On the Aboriginal names of Rivers in 

 Australia philologically examined," by the late Rev. Peter 

 MacPherson, M.A. September 1 — " Our Lakes and their uses," 

 by Fredk. B. Gipps, C.E. November 3 — " Notes on the History 

 of the Floods in the River Darling," by H. 0. Russell, B.A., F.R.S.; 

 " Notes on the sweet principle of Smilax Glycyphylla (Abstract)," 

 by Prof. E. H. Renaie, M. A., D.Sc; " On a new Filar Micrometer," 

 by H. C. Russell, B.A., F.R.S. December 1— " Notes on the 

 Theory of Dissociation of Gases," by Prof. Threlfall, B. A. (Cantab); 

 u Results of the Observations of Comets Fabry, Barnard, and 

 Brooks, (No. 1) 1886, at Windsor, N.S.W.," by John Tebbutt, 

 F.R.A.S. ; " Notes on some Rocks and Minerals from New Guinea 

 and Polynesian Islands," by Prof. Liversidge, F.R.S. ; " Notes on 

 some New South Wales Silver and other Minerals," by Professor 

 Liversidge, F.R.S. ; '• On the composition of Pumice from the 

 Pacific," by Professor Liversidge, F.R.S. ; "Metallic Meteorite, 

 Queensland (Preliminary Notice) by Professor Liversidge, F.R.S. ; 

 " On the Strength and Elasticity of Iron-bark Timber as applied 

 to works of Construction," by Prof. Warren, A.M.I.C.E. ; " Notes 

 upon Floods in Lake George," by H. C. Russell, B.A., F.R.S. 



The Medical Section held seven meetings, at which 21 papers 

 were read. The Microscopical Section held eight meetings, at 

 which eight papers were read. The Sanitary Section held five 

 meetings, at which six papers were read. A very successful 

 Conversazione was held at the Great Hall of the University on 

 the 6th October last, which was attended by between 900 and 

 1,000 members and their friends. 



At the Council Meeting held on the 8th December, 1886, it 

 was unanimously resolved to award the Clarke Medal for the 

 year 1887 to Dr. James Hector, C.M.G., F.R.S., &c, Director of 

 the Geological Survey of New Zealand, in recognition of his long 

 continued scientific labours, and more particularly on account of 

 his invaluable contributions to the geology and natural history of 

 New Zealand. In response to the offer of prizes and its medal 

 B 



