n Reject^ of blade making, showing the cause of the 
great quantities of rejectage. The aim of the workman 
was to obtain a thin blade such as were used as knives 
and projectile points, but too great thickness on one or 
both sides of the prospective blade, a result of the 
failure of the flakes to carry across the full width, 
left a hump which no skill could remove. . > ■-. T„ . 
