No. 6,] DAWKINS — THE ANTIQUITY OF MAN. 369 



of extinct and living forms, from both the genus Hippopotamus 

 has disappeared in the lapse of time, and in both man forms the 

 central figure. 



THE RIVER-DRIFT HUNTER IN NORTH AMERICA. 



We are led from the banks of tropical India to the banks of 

 the Delaware in New Jersey by the recent discoveries of Dr. C. 

 C. Abbott in the neighborhood of Trenton. After a study of 

 his collection in the Peabody Museum in Cambridge, Mass., I 

 have had the opportunity of examining all the specimens found 

 up to that time, and of visiting the locality in company with Dr. 

 Abbott and Professors Haynes and Lewis. The implements are 

 of the same type as those of the river gravels of Europe, and 

 occur under exactly the same conditions as those of France and 

 Britain. They are found in a plateau of river gravel forming a 

 terrace overlooking the river, and composed of materials washed 

 down from the old terminal moraine which strikes across the 

 State of New Jersey to the westward. The large blocks of stone 

 and the general character of the gravel point out that during the 

 time of its accumulation there were ice-rafts floating down the 

 Delaware in the spring, as in the Thames, the Seine, and the 

 Somme. According; to Professor Lewis it was formed durins: 

 the time when the glacier of the Deleware was retreating (" late 

 glacial "), or at a later period ("post-glacial"). The physical 

 evidence is clear that it belongs to the same age as deposits with 

 similar remains in Britain. The animal remains also point to 

 the same conclusion. A tusk of mastodon is in Dr. Cooke's col- 

 lection at Brunswick, New Jersey, obtained from the gravel, and 

 Dr. Abbott records the tooth of a reindeer and the bones of a 

 bison from Trenton. Here, too, living and extinct species are 

 found side by side. 



Thus in our survey of the group of animals surrounding man 

 when he first appeared in Europe, India, and North America, 

 we see that in all three regions, so widely removed from each 

 other, the animal life was in the same stage of evolution, and 

 " the old order" was yielding "place unto the new." The River- 

 drift man is proved by his surroundings to belong to the Pleis- 

 tocene age in all three. 



The evidence of Palaeolithic man in South Africa seems to me 

 unsatisfactory, because as yet the age of the deposits in which 

 the implements are found has not been decided. 

 ToL. X. X 2 Ko. 6. 



