PROCEEDINGS 



OF THE 



GEOLOGICAL SOCIETY OF LONDON. 



SESSION 1886-87. 



November 3, 1880. 

 Prof. J. W. Judd, F.E.S., President, in the Chair. 

 The List of Donations to the Library was read. 

 The following communications were read : — 



1. "On the Skull and Dentition of a Triassic Saurian, Galesaurus 

 ^laaiceps, Ow." By Sir Richard Owen, K.C.B., F.R.S., F.G.S., &c. 



2. " The Cetacea of the Suffolk Crag." By R. Lydekker, Esq., 

 B.A., F.G.S., &c. 



3. " On a Jaw of Hyotherium from the Pliocene of India." By 

 R. Lydekker, Esq., B.A., F.G.S., &o. 



The following specimens were exhibited : — 



Cast of Galesaurus planiceps, Ow., exhibited by Dr. H. Wood- 

 ward, F.R.S., F.G.S., in illustration of Sir 11. Owen's paper. 



A portion of head of Galesaurus planiceps, Ow., from Kuisement- 

 fontein, Caledon-river District, Orange Free State. Collected by 

 — Hatting, Esq., and exhibited by Prof. T. Rupert Jones, F.R.S., 

 F.G.S., on behalf of C. S. Orpen, Esq., Smithfield, O.F.S. 



Specimens of Cetacean Ear-bones from the Suffolk and Antwerp 

 Crags, and a portion of the Jaw of Hyotherium from the Pliocene of 

 India, exhibited by R. Lydekker, Esq., B.A., F.G.S., in illustration 

 of his papers. 



Map of the Mountain Region of British Honduras, scale 4 milli- 

 metres = 1 mile, showing the Geological features of the riparian 

 districts, by C. H. Wilson, Esq., F.G.S. 



VOL. xliii. 



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