MAN AND THE GLACIAL PERIOD. 



627 



new with Mr. Lucien Carr, of the Peabody Museum, Cam- 

 bridge, visited Dr. Abbott, aud they together found several 

 palaeolithic implements in the undisturbed gravel.* And 

 again, in 1879 and 1880, Professor F. W„ Putnam was with 

 Dr. Abbott when specimens 

 were found in similar condi- 

 tions. Mr. Carr describes the 

 situation as follows : It was " in 

 a fresh exposure made by a re- 

 cent heavy storm, and was about 

 three feet deep in the ground, 

 and one foot in from the perpen- 

 dicular face of this newly ex- 

 posed surface." Professor Put- 

 nam gives the following descrip- 

 tion of his discoveries : 



A short distance from Dr. 

 Abbott's house, and very near 

 where the Trenton gravel joins 

 the marine gravel, there is a deep 

 golly through which flows a small 

 brook. In this gully the gravel- 

 bank is constantly washing away, 

 and presenting new surface ex- 

 posures. After a heavy rain in 

 June, 1879, I visited the spot 

 with Dr. Abbott and his son. 

 Here I noticed a small bowlder 

 of about six or eight inches in 

 diameter, projecting an inch or 

 two from the face of the bank 

 about four feet from the surface 

 of the soil above ; I worked the 

 stone from the gravel in which 

 it was firmly imbedded and drew it out. At the back part of 

 the cavity thus made I noticed the pointed end of a stone, and 



Fig. 160. — Side view of the preceding. 

 (Putnam.) 



* " Proceedings of the Boston Society of Natural History," vol. xxi, p. 1 45 



