76 



been first perceived at a height of 16,895 feet. Tobacco smoke and 

 spirituous liquors were also found to produce an unusually rapid ef- 

 fect upon the sensorium. 



At the same meeting a letter was read from J. B. Pentland, Esq., 

 addressed to W. H. Fitton, M.D. P.G.S.. respecting the fossil re- 

 mains of some animals from the N.E. border of Bengal. 



The author has discovered among the mutilated fragments of bones 

 obtained from the tertiary deposits on the Bramahpootra River in the 

 small state of Cooch-Behar, — presented to the Society some years ago, 

 by David Scott, Esq., and referred to in a former volume of the 

 Transactions*, — the remains of four distinct species of mammalia, 

 making an interesting addition to the list already published by Mr. 

 Colebrooke, viz. — 



1. A species of the genus Anthracotherium of Cuvier, which the 

 author proposes to distinguish by the name of A. Silistrense, — a spe- 

 cific denomination derived from one of the many names by which the 

 great Bramahpootra river appears to have been designated by ancient 

 geographers. 



2. A small species of the order Ruminantia allied to the genus 

 Moschus. 



3. A small species of herbivorous animal referable to the Pachy- 

 defmata, but more diminutive than any of the fossil or living species 

 of that family at present known. 



4. A carnivorous animal of the genus Viverra. 



* Geol. Trans. 2nd Series, vol. i. p. 135. 



