EXPLANATION OF PLATE 



Fig. 1. Arrow and Spear Straightener. 



(Cat. Ko. 63723, U. S. N. M. Dioiiicde Islands, Alaska. Collectf d b.y E. VT. Xelson ) 



Fig. 2. Arrow and Spkar Straightener. 



(Cat. No. 43958, U. S. N. M. Nubuiakchusaltik, Alaska. Collected by E. W. Nelson.) 



Fig. 3. Arrow and Spear Straightener. 



'Cat. No. 44274, V. S. X. M. Cape Darby, Alaska. CoUected by E. W. Nelson.) 



