146 THE AMERICAN NATURALIST. [VoL. XXXIII. 
Still another specimen found by Dr. Abbott at this place 
is a human tooth, a third molar, an account of which was given 
in a paper read by him before the Boston Society of Natural 
History in October, 1882.1 
In the attempt to identify the single skull, or, assuming that 
the Burlington and Riverview specimens are also ancient, the 
three skulls from Trenton, we must necessarily proceed by the 
Pioa 
comparative method. A number of Indian skeletons have been 
discovered by Mr. Volk-during his excavations upon the Lalor 
Farm at Trenton, but these specimens are “in boxes and not 
accessible.” The only crania from that region available for 
comparison with the Trenton skulls are one from West Chester, 
Penn., in the Delaware Valley, and one from a Delaware 
peat bog. 
I have also included in the table of measurements the aver- 
ages of a series of five from the stone graves of Tennessee, 
selected from a large number as being nearly if not quite free 
1 Proceedings Boston Society of Natural History, vol. xxii, p. 96. 
