Putnam.] 
164 
[Dec. 19, 
5, a. 
5, b. 
Fig. 4. a, face; b, side view, actual size. Implement of quartz from gravel, Penn. 
R. R. cut, Trenton, New Jersey. Peabody Museum, No. 33164. From Dr. Abbott. 
Fig. 5. a, face; b, side view, actual size. Implement of quartz from modified drift 
at Little Falls, Minn. Peabody Museum, No. 31331. From Miss Babbitt. 
