BUREAU OF ETHNOI.OSY 



BULL. U _^ 21, PL. V 



BLADE OF MOST ADVANCED FORM FOUND IN QUARRY REFUSE. 



It is possibly a finished piece unintentionally left on the quarry-site, as the form is symmetric and the thicliness not 

 greater than that of many implements of like form used in the Mississippi valley. Actual size. 



