82 The Ottawa Naturalist. [July 



possible that these birds carry them to considerable heights, and 

 dropping them descend to feed upon their contents. 



To a naturalist the bay at Dutch Harbour is a fascinating 

 spot. Mollusks are rich, as to numbers, in both species and 

 specimens. In places exposed to the beating waves were found 

 in plenty the beautiful striped Chiton known as Tonicdla lineatus, 

 Wood; and a species of Anomia with thin perlaceous valves 

 of such pleasing deep lustrous green, that it might vie with 

 many a tropical shell. Upon the stones, high and dry, await- 

 ing the return of the tide, are innumerable gastropods called 

 Littorina sitkJiana, Philippi. They are of a dull but often vari- 



gated colour, and have a wide distribution. I saw them in 

 plenty at Vancouver Island, and specimens collected in Siberia 

 are in my possession.* The shell of this species is thin, and the 

 edge easily broken, and therefore in this respect is unlike the 

 thick shell of the Scotch " Buckie " or British Periwinkle {Lit- 

 torina littorea, L.) Numerous specimens of Purpura lima, 

 Martyn ; and various Limpets {AcmcBo) were found in the pools. 



A.t another spot, some miles down the shore from the vil- 

 lage of Unalaska, I found a neat little specimen of the genus 

 NaticUy with a close shutting calcareous operculum. 



One evening two of the seamen went fishing, and I accom- 

 panied them. We rowed over the bay in full view of the islands 

 until we were several miles away from the schooner. We 

 caught a number of cod-fish, halibut, skulpins, and rock-cod. 



Near by on one of the mountains were some Bald-headed 

 Eagles, and as one of them had settled on a crag, high over 

 head, we resolved to climb the cliff, in order to get a better 

 view of this really magnificent bird. We arduously toiled our 

 way to the top, clutching moment by moment the firm vegeta- 

 tion, but were well repaid with the excellent view we obtained 

 of the eagle when parallel with it. It was a fine sight to see the 

 large bird up there, and it repeatedly opened its great beak in a 

 threatening manner. The Bald-headed Eagle {Halicetus leuco- 

 cephalus, Linn.) belongs to the Falcon family of rapacious birds. 



'Collected by Mr. R. N. Venning, Dept. of Marine and Fisheries. 



