THEIR GEOLOGICAL AGE. 211 



traceable to a foreign origin; 1 whereas, on crossing the Alps, 

 Mammoth grinders are not unfrequent in the Swiss collec- 

 tions. In the Pliocene alluvium of Diirnten (alluvium of the 

 Swiss geologists) I found that molars of Eueleplias antiquus 

 are met with. Well-marked specimens exist in the Museum 

 of Zurich, which I was enabled to examine by the kind per- 

 mission of M. Escher de la Linth. In the erratic bed, above 

 this alluvium, the remains of the true Mammoth occur. 



In like manner I believe that the Mammoth remains found 

 in the United States of America are confined to the more 

 northern and central States. Twelve years ago I pointed 

 out to Sir Charles Lyell that some Elephant grinders which 

 he brought from Georgia belonged to an extinct species, dis- 

 tinct from the Mammoth. These remains occur in the New 

 Brunswick Canal, along with remains of Megatherium, 

 Mylodon, Mastodon, and Horse. I have seen other remains 

 referable to the same species from Alabama, Florida, Mexico, 

 and Texas. To this American fossil species I have assigned 

 the name of Euelephas Columbi. 



1 The author subsequently found reason to modify this opinion. See pp. 173, 

 175, and 241.— [Ed.] 



p 2 



