54 



indebted to Dr. Wistar, for two new species 

 of the genus Bos ; and to Dr. Harlan for 

 one of the Elephant, Tapir, Deer, and a 

 gigantic Manatns or Sea Cow from the 

 eastern shore of Marjlarid. 



We are not aware that any Ornitholites 

 or remains of birds, have jet been discover- 

 ed in our country. Specimens have been 

 presented to the Lyceum, from the sand- 

 stone of Nyack in the vicinity of this city, 

 which, although much comminuted, were 

 evidently the bones of birds. The circum- 

 stances under which they were found, and 

 their appearance, led to a belief that they 

 had been fortuitously deposited in open 

 fissures of the rock. The Reptiles, from 

 some cause to us inexplicable, have rarely 

 been found in a fossil state. The greater 

 part of those discovered within a few years 

 belong to the class of marine reptiles, and 

 have but a remote analogy with any of the 

 present living species. Among these we may 

 distinguish the Saurocephalus of Dr. Harlan, 

 and the Monitor, described by Dr. Mitchill, 

 from the tertiary formation of New Jersey. 



Many parts of our country present ex- 



