Geology. 257 



Remains of the large Megaladapis insignis from Madagascar 

 were purchased from Mr. R. F. Damon. A skull of Castoroides 

 ohioemis from the Pleistocene of Illinois was obtained by exchange 

 with the U.S. National Museum. 



Part of the skeleton of a gigantic Dinosaur, Cetiosaurus leedsi, 

 from the Oxford Clay of Peterborough, was purchased from 

 Mr. Alfred N. Leeds. 



A small series of Teleostean Fishes from the Chalk of 

 Bohemia was purchased from Dr. Anton Fritsch. Thelodus and 

 Birkenia from the Upper Silurian of Lanarkshire were purchased 

 from Mr. F. H. Butler. Specimens of Pteraspis from Antigonish 

 Co., Nova Scotia, were presented by the Director of the 

 Geological Survey of Canada. 



Silurian Invertebrata from Ontario, Canada, were presented 

 by Col. C. C. Grant. Devonian Invertebrata from the Eifel 

 were presented by Mr. Upfield Green. Some fragmentary 

 duplicates from a collection of Jurassic fossils from Franz Josef 

 Land were presented by Messrs. F. Jackson and A. Harmsworth. 

 English Chalk Invertebrata were presented by Dr. Rowe, 

 Mr. C. D. Sherborn, Mr. George Potter, and Mr. W. McPherson. 

 The Dowker Collection of Cretaceous and Tertiary fossils from 

 Kent was purchased from Miss E. F. Dowker. Miscellaneous 

 Entomostraca were purchased from Prof. T. Rupert Jones. 

 Mollusca and Corals from the Great Oolite of Fairford, Gloucester- 

 shire, were purchased from Miss A. T. Slatter. Tertiary 

 Mollusca from Victoria, Australia, were purchased from Mr. 

 F. H. Butler ; from Florida, from Messrs. Sowerby and Fulton. 

 Specimens of Silurian Crinoidal Limestone from Szechuen, China, 

 were presented by Mr. F. W. Styan. A second instalment of 

 the E. O. Ulrich Collection of American Palaeozoic Polyzoa was 

 purchased. Some Polyzoa and other fossils from the Chalk of 

 Riigen were purchased from Mrs. Agnes Laur. The late Dr. 

 George Busk's Collection of Tertiary and Mesozoic Polyzoa, 

 including type-specimens described in his Monograph of the 

 Polyzoa of the Crag, was presented by the Misses Busk. 

 Total number of acquisitions, 9780. 



1900. 



The important collection of British fossils, chiefly of Palaeozoic 

 age, formed by the late Mr. G. H. Morton, of Liverpool, was 

 purchased from Miss Morton. An almost unique collection of 

 VOL. i. s 



