Haynes] 
136 
[January 19, 
wadys, which pierce the hills that bound the valley of the Nile, 
I have found numerous specimens of flint axes of the type of St. 
Acheul, which have been adjudged to be true palaeolithic imple- 
ments by some of the most eminent cultivators of prehistoric 
science. 
Each particular discovery accordingly must be tested by the 
peculiar conditions of locality and circumstances under which it 
has occurred. 
Now it has been my good fortune to find palaeolithic imple- 
ments in Europe in several localities, both where they have been 
accompanied by the characteristic fossil bones, and where these 
have been wanting. I have thus had the opportunity of making 
myself familiar with the general character of such localities and 
the apj>earance of the country in the vicinity, together with 
the nature and quality of the gravels in which the implements are 
found. I have especially studied the gravel beds of the valley of 
the Seine, in the vicinity of Paris, and of the Tiber, near Rome, for 
several successive years, and in a very great number of visits, and 
from both these localities I have obtained fossil bones of the 
mammoth, the rhinoceros, the hippopotamus, the bos antiquus, 
the great extinct elk, the horse, the reindeer, etc. Accompanying 
these fossil bones were found the characteristic palaeolithic imple- 
ments. I have also visited the famous locality of St. Acheul, 
and the well-known gravel-pits near Salisbury, England, in both 
of which spots have occurred numerous finds of palaeolithic imple- 
ments, accompanied by similar fossil bones. In another locality, 
near Dinan, in Normandy, where the pleistocene deposits no 
longer exist, as is also the case in the valley of the Nile, I have 
found a large quantity of palaeolithic implements made out of 
quartzite. From these various experiences I feel myself warranted 
in stating that the general appearance of the country, and the 
character of the gravels, at Trenton, N. J., present a most striking 
resemblance to what I have seen in the various localities in the 
Old World to which I have referred. There is the same rudely 
stratified mingling of coarse materials marked by a similar 
absence of clay. It is true that in the gravels of New Jersey thus 
far not many fossil bones have been discovered, but only a few of 
the mammoth, the bison, the reindeer and the walrus, some of 
