52 Vniwersiiy of Ccdifornia Publications im> Zoology [Vol.30 



Acknowledgments are due to the Dominion Parks Branch, Depart- 

 ment of the Interior, Canada, for permission to collect minatory birds, 

 and to the Game Conservation Board, Vancouver, for permission to 

 collect non-migratory birds and for other courtesies. 



In working up the collection it proved necessary to borrow speci- 

 mens from many institutions. The study of the ptarmigans in par- 

 ticular called for the assemblage of as large series of certain forms 

 as could be brought together, and appeal was made to all museums 

 and private collections that seemed likely to have pertinent material. 

 Generous response to the many requests for the loan of specimens came 

 from all who were asked, comprising the following : American Museum 

 of Natural History, New York (including many specimens from the 

 Sanford collection) ; Carnegie Museum, Pittsburgh; Colorado Museum 

 of Natural History, Denver; Museum of Comparative Zoology, Cam- 

 bridge ; Museum of History, Science and Art, Los Angeles ; Provincial 

 Museum, Victoria; United States Biological Survey; United States 

 National Museum; Victoria Memorial Museum, Ottawa; Louis B. 

 Bishop ; Donald R. Dickey ; George Willett. 



To Major Brooks I am indebted for help extended daily during 

 the season's field work, for specimens turned over to me from day to 

 day, field observations proffered, and for advice and critical comments 

 pertaining to the systematic treatment of various species. The cordial 

 assistance extended to us both by individuals resident in Atlin, whose 

 acquaintance we made there, was a most important factor in making 

 our work pleasant and profitable. In particular, mention should 

 be made of Mr. C. L. Monroe, Government agent, for aid in his 

 official capacity, and, together with Mrs. Monroe, for many unofficial 

 courtesies; of Mr. A. B. Taylor, Government telegraph operator, a 

 sportsman and a keen observer, in whose company I made many 

 pleasant trips, who aided in securing numerous specimens and who, 

 with Mrs. Taylor, did all he could to make our summer a pleasant 

 one ; and of Mr. H. Maluin, whose cordial welcome to his mining camp 

 on Otter Creek enabled us to work in that region. On the train, 

 en route from Skagway, we first made the acquaintance of Inspector 

 Moorhead, of the Royal Canadian Mounted Police, who, then and 

 later in the summer, lost no opportunity of extending such courtesies 

 as lay in his power. To Corporal Robert McCleery and Mrs. McCleery, 

 in their isolated post on Lake Teslin, the writer is indebted for cordial 

 hospitality and for aid in securing needed specimens. Prom Mr. and 

 Mrs. John Garrett, of Atlin, we received innumerable courtesies. 



