ANNIVEESAEY ADDKESS OF THE PEESIDEjSTT. 5 1 



Poraminifera and Polyzoa of the Cambriclge Greensand, Mr. Waters 

 has described some Cyclostomatoiis Polyzoa from Australia ; corals 

 have received notice in two paj^ers from Professor P. M. Duncan 

 and in one from Mr. Tomes ; and the former author also favoured 

 us with a most important and suggestive paper on the structure of 

 the tests of the endocyclic Echinoidea. Professor Rupert Jones has 

 largely added to our knowledge of fossil Ostracoda. The MoUusca, 

 however, have received only passing notice. Mr. J. W. Davis has 

 described some fish-remains from I^ew Zealand, Mr. Hulke has 

 described the sternal apparatus of Igucmodon, and Mr. Lydekker a 

 crocodile from Malta ; Dr. H. Pohlig has sent us some notes on 

 extinct species of Elephants and on the Pliocene of Maragha in 

 Persia ; and from Mr. Lydekker we have also received a paper on 

 mammalia from the same deposit, besides a third paper on an 

 Eyinaceus from the Miocene of Switzerland. Dr. H. Woodward 

 communicated to us an important memoir on Rliytina gigcis, exter- 

 minated through greed of gain in historical times ; while Sir R. 

 Owen, though unfortunately unable during the past year to be 

 present at our evening meetings, has assured us of his continued 

 interest in the Society by sending a paper on the premaxillaries 

 and scalpriform teeth of a large extinct Wombat. 



Our knowledge of the stratigraphy of the United Kingdom has 

 been augmented, as regards the Lower Palaeozoic rocks, by Messrs. 

 Marr and T. Roberts, whose important paper on a district near 

 Haverfordwest supplies much valuable information. The late 

 Mr. D. C. Davies wrote on the coalfields of iS'orth Wales and Salop : 

 Mr. Bather on the Lias and Oolite of Eawler ; and Messrs. Jukes- 

 Browne and Hill, in their recent papers, have augmented our know- 

 ledge of the subdivisions of the Chalk and their horizontal extension. 

 From Mr. Irving and Mr. Hudleston we have received important 

 papers on the geology of parts of Surrey ; Professor Judd has given 

 us, in a supplementary paper, the final results of the unsuccessful 

 boring for water at Richmond ; and Mr. W. Whitaker, in his con- 

 tribution to the deep-seated geology of the London basin, has 

 supplied students of the physical geography of bygone ages with 

 fresh materials, chiefly obtained in borings for water through the 

 Chalk at Chatham. The rapid thinning out of the Lpper Neoco- 

 mian of Kent and Sussex in a northerly direction, and the occurrence 

 next below it of Oxford Clay underneath Chatham, are facts not less 

 important than suggestive. In Post-tertiary geology contributions 

 have been made by Messrs. Ormerod, Ricketts, MeUard Reade, %nd 

 J. A. Brown, and last, but by no means least, by Dr. Hicks and 

 Mr. W. Davies, of whom the former has temporarily deserted his 

 researches among the most ancient rocks to explore the bone-caves 

 in the valley of the Clwyd. We have also received papers descrip- 

 tive of South- African geology from Mr. Penning, and of ^N'ew Zealand 

 from Captain Hutton ; while Dr. R. von Lendenfeld has asserted 

 that even torrid Australia has endured a glacial period. 



Petrological papers also have by no means been wanting. Mr, 

 E. Rutley has read us two papers, brief but elaborate ; Mr. Cole 



