EXPLANATION OF PLATE 7. 



Fig. 1. Ahrow and Speak Stkaighteneij. 



(Cat. No. 44383, U. S. N. M. From Capo Kome, AJaska. Collected by E. W. Kel.son.) 



Fig. 2. AijROw AND Spear Straightener. 



(Cat. No. 45109, U. S. N. M. Sle<lge or Aziak Island, Alaska. Collected by E. W. Nelson 



Fig. 3. Arrow and Spear Straightener. 



(Cat. No. 44745, U. S. N. :^r. Sledge Island, Alaska. ( 'ollected by E. W. Nelson.) 



