MAX AND THE GLACIAL PERIOD. 



653 



lith was found in undisturbed gravel about fifty feet above 

 the flood-plain of the river. The gravel was firmly packed, 

 and the implement was with difficulty extricated from it with 

 his hunting-knife. Above it and the bowlder just mentioned 

 were eight feet of gravel and loam, capped by three feet of soil. 

 Mr. Cresson was thoroughly convinced that it would have 

 been impossible for any implement of recent manufacture to 

 have rolled down from the soil above and assume the position 

 it was in with reference to the bowlder. Besides, the imple- 

 ment is of a true palaeolithic type, and has the usual marks 

 of age characterizing such implements.* 



2 



Fig. 177. — 1, a, convex surface of a chert implement found at the month of Little Elk 

 River. Morrison County. Minnesota, supposed to be a scraper. 1. b. profile view of the 

 same.t 2, a. convex surface of a chert implement found at Little Falls. Minnesota. 

 2. b. profile view of the same. The figures do not perfectly represent the evident- 

 ly chipped edges. (Winchell.) 



Another locality especially worthy of attention, in which 

 palaeoliths have been found, is at Little Falls, Morrison 

 county, Minnesota, the situation of which can readilv be seen 

 by reference to the map on page 546. The first discover- 

 ies at this point were made as long ago as 1877, and an ac- 

 count of them was given in the " Sixth Annual Geological 

 Report of Minnesota." \ These implements were made from 

 chert and quartz, and were recognized by Professor N. H. 



* See Mr. Cresson's report on the subject, in the " Proceedings of the Boston 

 Society of Natural History," vol. xxiv, p, 150 et seq. 



f This specimen is regarded a finished implement by Futnam. % Pp. 53-58. 



