daring the Arctic Expedition 1875-76. 409 



tered at intervals along the coast ; and a nest, scraped in the 

 gravel and containing two eggs, was found 27tli June, about 

 three miles north of our winter-quarters. During the first 

 week in August we found a pair of young birds nearly ready 

 to fly in lat. 81° 50' N. 



12. Pagophila eburnea. Ivory Gull. 



One of the Gulls most frequently observed in Smith Sound, 

 but not beyond latitude 82° 20' N. I found a pair nesting 

 in a lofty and inaccessible cliff near Cape Hayes on the 16th 

 August, 1875. On 1st September a single example flew 

 around the ' Alert ' when she lay moored to the ice in Lincoln 

 Bay (lat. 82° 6' N.). On the 2nd August, 1876, I observed 

 one of this species near Cape Union ; on the 12tli August 

 they were common in Discovery Bay, and from there south- 

 ward to the north water of Baffin Bay. 



13. RissA TRiDACTYLA. Kittiwakc. 



I saw a few examples of this species flying over the open 

 water in the vicinity of Port Foulke, 28th July, 1875 ; but we 

 did not observe it to the northward after entering the ice of 

 Smith Sound ; and in 1876 no specimen was seen as the ex- 

 pedition returned south, until the north water of Baffin Bay 

 was reached. 



14. Larus glaucus. Glaucous Gull. 



We did not find this species breeding north of Cape Sabine ; 

 but stray individuals were observed as far north as lat. 82° 34'. 

 The 1st September, 1875, was the latest date in the autumn 

 on which I noticed this species ; and it reappeared in the vici- 

 nity of wdnter- quarters (lat. 82° 27' N.) in the middle of June. 



15. Stercorarius longicaudatus. Buffon's Skua. 



This was the only species of Skua Gull that I met with in 

 Smith Sound ; it arrived in the neighbourhood of our winter- 

 quarters during the first week of June, and in considerable 

 numbers. After that date it was to be seen during every hour 

 of the day quartering the fells and searching for lemmings. 

 It lays its two eggs in a small hollow in the ground, and de- 

 fends its nest with the utmost bravery. On several occasions 



