18 
York), Boston Society of Natural History, California Academy of Sciences 
(San Francisco), Carnegie Museum (Pittsburgh), Cleveland Natural 
History Museum (Ohio), Museum of Comparative Zoology (Cambridge), 
Everhart (Pennsylvania), United States National Museum (Washington), 
Philadelphia Academy of Natural Sciences, Princeton University Museum 
(New Jersey), Royal Ontario Museum of Zoology (Toronto), University of 
Michigan Museum (Ann Arbor), Museum of Vertebrate Zoology (Univer- 
sity of California, Berkeley), and National Museum of Canada (Ottawa). 
The United States Biological Survey, Department of Agriculture, Washing- 
ton, was also represented by several of its members. The Canadian 
attendance of associates and others included numbers from Toronto, 
Montreal, Hamilton, London, Winnipeg, and other points. The enter- 
tainment of the guests was much facilitated by the hearty co-operation of 
the Canadian National Parks Branch, Department of the Interior, through 
its Migratory Birds division, and by the members of the Ottawa Field 
Naturalists' Club. Judging by the reports in various scientific periodicals 
as well as in newspapers, the meeting did much to promote cordiality of 
feeling between scientific people in both countries, as well as doing much 
to make the work and resources of the National Museum of Canada known 
internationally as well as in Canada. Each member of the Union was 
presented, as a souvenir of the occasion, with a copy of the “Birds of 
Western Canada” by P. A. Taverner, only shortly before published by 
the Museum. 
During the year many specimens in the lines of botany and zoology 
are sent in from different parts of the country for determination, and 
numerous requests for information on a variety of subjects pertaining to 
natural history are received from different departmental officers of the 
Dominion Government and the various provinces, as well as from the 
general public, and such inquiries have been answered by the officers of 
the division as fully as possible. 
Numerous specimens have been loaned to schools for natural history 
w’ork, and selected slides have been loaned for lecture purposes to persons 
engaged in educational work. Loans of individual specimens and in some 
instances special groups of animals and plants have also been made to 
museums and qualified individuals who have been monographing certain 
groups, and similar courtesies have been received by the officers of the 
division. A large series of red-tailed hawks of the genus Buteo were loaned 
by various institutions and individual collectors for use in a critical study 
of the variations of this difficult species. A large collection of weasels of 
the genus Mustela have been loaned to the Museum of Vertebrate Zoology 
at Berkeley, where exhaustive studies are being made of the weasels of 
North and South America. 
Office and Field Work 
Considerable new data have been secured, and systematic efforts made 
to fill important gaps in the list of mammalian species in the museum, both 
for purposes of exhibition in the mounted state and for research purposes. 
The filling in of these gaps is essential to furnish the necessary material for 
a systematic and popular handbook of the mammals of Canada, including 
the big game, fur-bearers, and other mammals of more or less doubtful 
