ARROWPOTNTS, SPEARHEADS, AND KNIVES. 



863 



feet in diameter at the surface, 13 feet at the bottom, and originally 

 about 40 feet deep. Similar jiits or fiinuel shaped depressions abound 



at the quarry at Flint Ridge, Licking County, Ohio. As at Spiennes, 

 the workmen passed through a stratum of llint, which was rejected as 



