— HRDLIGKA] SKELETAL REMAINS 35 
receding lower jaw, such as might be expected in geologically ancient 
man. The teeth are of ordinary size; they are worn off to a quite 
marked extent, a condition which points to rather coarse vegetable 
diet, and is general among Indians after early middle age. The canines 
are in no way morphologically peculiar, but their points have been 
worn off to the level of the incisors; this happens invariably, unless 
the teeth are displaced, as the process of attrition advances. 
There is, on the whole, nothing connected with the remnants of the 
Penon skeleton which would indicate man of a type earlier than, or 
radically differeftt from, the Indian. ; 
XII.—_THE CRANIA OF TRENTON 
There is no other region on this continent that has been brought as 
conspicuously to the attention of archeologists and students of man’s 
antiquity as that along the Delaware river in and about Trenton, New 
Jersey. This district is rich in deposits of glacial gravels, and for 
nearly thirty years these have been searched wherever exposed for the 
remains of early man and his art. For nearly twenty years, with a 
few intermissions, Prof. F. W. Putnam, of the Peabody Museum, 
Cambridge, Massachusetts, has carried on, principally through Mr. 
E. Volk, careful explorations of these gravels, with the view of deter- 
mining the question of man’s presence in the Delaware valley before 
the advent there of the Indian. The deposits in the valley have 
yielded many remains and relics of the Lenape (Delawares), who 
occupied it up to and even for some time after the appearance of the 
whites. They have yielded also implements which were thought to 
belong to an earlier culture, and parts of human skeletons of a seem- 
ingly earlier people. Unfortunately, the geological evidence of the 
presence of early man in the region is not conclusive, and the age of 
many of the remains is still unsettled. The idea that during post- 
Glacial time or even before the close of the Glacial period man lived 
where Trenton now stands has found adherents, but the best-qualified 
students of the question, including Professor Putnam himself, main- 
tain a careful reserve. 7 
It was under these circumstances that the writer was invited 
by Professor Putnam, in 1898, to examine all the osteological 
material recovered in the Delaware valley and to determine what 
the anatomical features of the remains indicate as to the antiquity of 
the Trenton man. A detailed account of this examination was pub- 
lished in the Bulletin of the American Museum of Natural History, 
in 1902, and the essentials are here given, with additional observations 
based on the writer’s more recent knowledge of certain reports on 
European crania. 
