Geology. 203 



1824. 



Mr. Gibson's donation was continued. 



Shells from the Crag of Suffolk and Norfolk were presented 

 by Rev. G. R. Leathes. 



1825. 



Among the donations were : 



A tooth of Iguanodon in Wealden sandstone, from Mr. M. B. 

 Durrant ; plaster casts of teeth of Iguanodon, from Dr. G. A. 

 Mantell ; and " A new variety of the Nave Encrinite," from 

 Mr. George Cumberland of Bristol. 



1826. 



A specimen of Ichthyosaurus from the Lias of Balderton, 

 Nottinghamshire, was presented by Dr. Bland. 



1827. 



A Paramoudra (large flint) from the Chalk of Norfolk was 

 presented by Rev. John Gunn. 



The Sommering collection was purchased. 



1828. 



Further donations were received from Dr. G. A. Mantell. 



Mr. J. S. Pratt of Bath, presented a specimen of the 

 Lansdown Encrinite, described by Dr. J. E. Gray as Apiocrinites 

 pratti. 



Fossils from the Braunston Crag, and fossil wood from the 

 submerged forest of the Norfolk coast, were presented by Mr. 

 Samuel Woodward of Norwich. 



Tertiary wood from Antigua was presented by Mr. J. A. 

 Wood. 



Bivalve shells from the Coal-Measures of Newcastle, were 

 presented by Mr. W. Norris of Bury. 



1829. 



Three teeth of Iguanodon in Wealden sandstone from Sussex, 

 were presented by Dr. G. A. Mantell. 



Freshwater marl from the Isle of Wight containing seed- 

 vessels of Chara, was presented by Mr. (afterwards Sir) Charles 

 Lyell. 



Fossil plants from the Lower Oolites of Scarborough, were 

 presented by Mr. John Williamson. 



