60 • SUMMER IN A BOG. 



But this we conclusively know by geological 

 discovery, that from a primitive life in caves 

 and huts, aided first by implements of bone and 

 stone, to the present complexity of knowledge, 

 arts, science, inventions, and luxurious living, 

 man has progressed. There has been no phys- 

 ical alteration observed through our known his- 

 tory of him greater than may be accounted for 

 on the basis of civilization and climate or of 

 intellectual and psychic development or degen- 

 eration. 



An interesting and, as yet, imanswered ques- 

 tion is: Did man exist previous to the glacial 

 epoch? In the glacial deposits rude paleolithic 

 implements of argillite, flint, chert, quartz, etc., 

 are not infrequently found. It will be well for 

 the public to be on the alert to save for scientific 

 examination by experts in ethnology everything 

 of this kind found in the earth. 



In the month of November, 1911, at Water- 

 works Park (London, Ohio), a number — ^ten or 

 more — chert arrow-heads were discovered by 

 well-diggers at a depth of 80 feet, on a bed of 

 blue clay mixed with pebbles. It was not until 

 several months afterward that I heaM of this 

 very interesting "find," when all but two of 

 the arrow-heads had been carried off by the 

 workmen, who were from "Washington C H. It 

 would be now difficult and uncertain to trace 

 them. 



