Plate 31 



Upper : Nest and eggs of white-rumped sandpiper, June 23, 1925. 



Lower: White-rumped sandpiper on its nest, June 21, 1025. Both 

 photographs taken by Mr. J. Dewey Soper at Nettilling Lake, 

 Baffin Island, presented by him, and by courtesy of the Department 

 of Mines, Canada, referred to on page 183. 

 390 



