GEOLOGICAL SOCIETY. 61 



served in Cuvier's collection of comparative anatomy. 

 The tooth in question proves to have belonged to the 

 anterior socket in the upper jaw of a Tapir. The size 

 of the tooth and the form and structure of its roots, dis- 

 tinguish it from those of the Mastodon. 



Place in the Geological series. — Contemporaneous 

 with the fossil remains of the Rhinoceros, Elephant, Mas- 

 todon and other Pachydermatous quadrupeds. Hitherto 

 the fossil Tapirs have been found only in Europe, whilst 

 the recent species inhabit only South America and 

 Mexico, the peninsula of Malacca and the isle of Su- 

 matra. 



Genus Equus. 

 E. caballus. The Horse , 



The fossil remains of this quadruped are sparingly 

 found both in North America and in Europe. The 

 late Dr. S. L. Mitchell, in his edition of Cuvier's 

 Theory of the Earth, alludes to the fossil teeth and ver- 

 tebrae of the horse, found near Neversink hills, state of 

 New Jersey. 



The cabinet of the Academy of Natural Sciences, 

 Philadelphia, also contains specimens, from the valley 

 of the Ohio or Mississippi, and we have to acknowledgo 

 the receipt of others from Col. I. J. Abert, of Washing- 

 ton, which were found in excavating for the Chesapeake 

 and Ohio canal, near Georgetown, D. C, not far from 

 the Potomac river. 



