A Pre-Columbian Mine. 237 



arrow-point of it, for these, in every stage of in- 

 completeness, are everywhere abundant. 



And now, what of the workshop sites ? It is 

 a natural inference that if at the mine itself the 

 jasper was not reduced to its ultimate condition 

 of a finished implement, then such spots as were 

 well adapted to a flint-chipping industry would be 

 found to have been utilized as such ; nor are we 

 mistaken. Every Indian was not his own imple- 

 ment-maker. There were professional chippers in 

 those days, and just as we find manufactories to- 

 day near the sources of supply of raw material, 

 so was it with flint-chipping when jasper mines 

 were a scene of busy industry. Less than a mile 

 from the mine is more than one such site, and 

 many, by recent changes and the violence of 

 floods, have been wholly obliterated. One of 

 the most important, but not one that can now be 

 traced, was some five hundred yards distant from 

 the Durham Cave. It reached back from the 

 Delaware about a fourth of a mile. The sod was 

 never broken or a furrow turned that the refuse 

 incident to arrow-making was not brought to light 

 in startling abundance. Again, on the bank of a 



