28o BEACH GRASS 



print the interesting fact that a royal tern had 

 been found so far north, for I was not satisfied. 

 There was a peculiar polish in the enamel coat- 

 ing that "bill." A few years later I was look- 

 ing at a dogfish thrown up by the waves on the 

 beach, and, on examining the spur or tooth on 

 the dorsal fin, I saw at once that it was my 

 "royal tern's bill." Then I published "A case of 

 mistaken diagnosis" but naturally did not dis- 

 close the names of the experts in Washington. 

 I shall never be deceived by a dogfish's dorsal 

 spur again. 



Other prizes are the work of Indians. Bits 

 of rude pottery — potsherds — are not uncommon, 

 some of them ornamented by a pointed stick or 

 by the impression of a twisted cord. Flint chips 

 and stone implements are rare. I have found a 

 few bone awls and needles, some of which resem- 

 ble closely those made by the Eskimos at the pres- 

 ent day. I have also found pieces of bone cut 

 or notched. One had eight distinct notches, 

 perhaps a record of enemies slain, or, may be, of 

 wild geese captured. 



At Treadwell's Island, near the mouth of the 



