1894.] Shell Heaps of Florida. 19 
During the entire investigation of the writer but one imple- 
ment in any way resembling a chisel or hatchet was brought to 
light, that could positively bè ascribed to the period of the 
Figure 5.—Arrow Head, St. Francis. (Actual size). 
shell-heaps. This was an implement of polished greenstone 
figured and described in the AMERICAN NATURALIST, August, 
