EXPLANATION OF PLATE 7. 



1 2 3 



Fig. 1. ARROW AND SPEAR STRAIGHTENED. 



(Cat. No. 44383, U. S. N. M. From Cape Nome, Alaska. Collected by E. W. Nelson.) 



Fig. 2. ARROW AND SPEAR STRAIGHTENER. 



(Cat. No. 45109, U. S. N. M. Sledge or Aziak Island, Alaska. Collected by E. AY. Nelson. 



Fig. 3. ARROW AND SPEAR STRAIGHTENER. 



(Cat. No. 44745, U. S. N. M. Sledge Island, Alaska. Collected by E. W. Nelson.) 



