CONNECTICUT AVENUE QUARRIES 



121 



same general shape are two picks raade from quartzite bowlders aud 

 resembling heavy-pointed turtlebacks (figures 21, 22). In no case 



riG. 20 — Rude pick of quartz, slightly sharpened by flaking. 



does the form of these tools suggest the attachment of a haft, although 

 such attachment would probably be feasible. 



Three chisel like tools were found in the main trench on the summit 

 of the hill. They are of ijeculiar types, aud we may fairly assume that 



Fk). 21 — Rude pick raade by sharpening qnartzite bowlder. 



they were raade for use in the potstone shop. One made of gray erup- 

 tive rock is blade-shaped and has a fine chisel-like point or edge. It is 

 shown in «,«, plate Lxxxviii. 



