observed on the Yenisei Rive?'. 517 



like a Dunlin, but as I afterwards saw Dunlins close by, I 

 was probably mistaken. 



The nest was a rather deep hollow amongst the reindeer- 

 moss in an open space on a ridge of ground somewhat drier 

 than the surrounding swampy tundra, in much the same 

 sort of place as that generally chosen by a Grey Plover. 



The four eggs, which were slightly incubated, resemble 

 those of the Common Snipe, except in size, and also some 

 eggs of the Purple Sandpiper. They measure from 1-4 in. 

 to 1"47 in. in length, by from 1 in. to 1*02 in, in breadth. 

 As we were unable to find another nest, although we devoted 

 several days to the search, I imagine we were on the extreme 

 western fringe of the breeding-grounds of this species. 



The eggs have been figured in the Proc. Zool. Soc. 1897, 

 p. 890, pi. li. figs. 1-4. 



145. ^Machetes pugnax. 



I met with Ruffs at Yeniseisk and as far north as I went. 



146. Calidris arenaria. 



I had hoped that if able to get eggs of the Curlew-Sand- 

 piper, I might find those of the Sanderling also, because I had 

 shot young birds of the year in 1895 at Kuzkin Island ; but 

 apparently this species nests even further north than Tringa 

 subarquata. I did not obtain a single example on this visit. 



147. TOTANUS HYPOLEUCUS. 



Common Sandpipers were plentiful at Yeniseisk, and were 

 almost daily seen along the shore of the river up to the 

 Arctic circle. 



148. *T0TANUS OCHROPUS. 



Green Sandpipers were common at Yeniseisk. 



149. "^ToTANUS GLAREOLA. 



There were no Wood-Sandpipers to be found nesting near 

 Toorukhansk, where I had taken their eggs from old Field- 

 fares' nests two years before. A Sandpiper's o,^^ and a 

 Fieldfare's egg were found in the same nest, but I had no 

 opportunity of seeing if the bird was a Wood-Sandpiper or 

 a Green Sandpiper, 



