210 Geology. 



were presented by Mr. John Brown, of Stanway. Upper Liassic 

 Brachiopoda from Ilminster, were presented by Mr. Charles 

 Moore. A few fossils, chiefly Brachiopoda, from the Wenlock 

 Limestone, were presented by Mr. John Gray, of Hagley. 



A series of Tertiary invertebrate fossils from Sind, India, 

 was presented by Captain (afterwards General Sir) William 

 Erskine Baker. 



1850. 



The most important general collection acquired during this 

 year was that of Frederic Dixon, of Worthing, purchased from 

 his executors. It consists chiefly of fossils from the Chalk and 

 Eocene formations of Sussex, and includes many specimens 

 described and figured in Dixon's " Geology and Fossils of 

 Sussex." 



Among Vertebrata, Mr. Searles Wood presented his valuable 

 collection of Reptilian and Mammalian remains from the Upper 

 Eocene (or Oligocene) of Hordwell Cliff, Hampshire, including 

 several described and figured specimens. Capt. Kellett and 

 Lieut. Wood presented a series of Pleistocene Mammalia from 

 Kotzebue Sound, Alaska ; and Mr. D. Sharpe presented a few 

 similar remains from Erith, Kent, and Grays, Essex. The restored 

 model of the shell of the giant tortoise, Colossochelys atlas, from 

 the Pliocene of India, was completed under the direction of Dr. 

 Hugh Falconer, and prepared for exhibition. 



Mr. S. P. Pratt presented Hippurites and Sphaerulites from the 

 Cretaceous of France. Miscellaneous purchases included Miocene 

 fossils from Malta, Chalk fossils from Kent and Norfolk, Oxford 

 Clay fossils from Wiltshire, Silurian Trilobites and Crinoids 

 from Dudley, and Devonian Corals and Stromatoporoids from 

 Devonshire. 



1851. 



The Pomel Collection of fossil Vertebrata, chiefly Mammalia, 

 from the freshwater Tertiaries of Central France, including some 

 described and figured specimens, was an important acquisition by 

 purchase. A few similar Mammalian remains from the Mayence 

 Basin were also purchased. Some well-preserved fishes of the 

 genera Palseobalistum and Prelates, from the Upper Chalk of 

 Mont Aime, Marne, France, were purchased from Baron Ponsort. 

 An ischium apparently of Megalosaurus, from the Stonesfield 

 Slate, was presented by Mrs. Townsend. 



Dr. J. J. Bigsby presented an important collection of Palaeo- 



