A STUDY OF PREHISTOR[C ANTHROPOLOGY. 



631 



(26 958) 



Fig. 1. 

 Jaspeky Flint. 



(Trenton gravels, New Jersey. Keccived from Dr. C, C. Abbott.) 

 Primitive Industry : Chap, xxxii, p. 471. 



Pig. 2. 

 Gray Quartzite. 



(Banka of the. Schuylkill, Berks Counts', Pennsylvania. Received from A. F. Berlin.) 

 American Antiquarian: Vol. I, p. 10. 



