4 
PHOTOGRAPHS 
A large collection of photographs that have been taken by officers of the 
National Museum and Geological Survey furnishes a basis for the 
Museum’s service to the public. Of late years this service has been supple- 
mented increasingly by the photographic collections of other Government 
organizations, notably the great collection of air photographs of the 
R.CA.F., and the select animal and science photographs of the Dominion 
National Parks Commission. The Museum selects and supplies many of 
these photographs for writers of books and magazine articles. Sets of 
lantern slides, mostly coloured, are being assembled increasingly for loans, 
on the same terms as moving picture films. 
PUBLICATIONS 
Reference has alreadv been made to the series of well-illustrated, non- 
technical works on Canadian natural history that are being prepared and 
published, such as “ Birds of Canada ” and “ Indians of Canada.” A third T 
on the mammals of Canada, is being 'written by R. M. Anderson. 
SALE AND LOAN OF SPECIMENS 
The section on mineralogy that follows in this report states how many 
standard collections of minerals and rocks were distributed to schools and 
to prospectors. Other kinds of specimens, because of their fragility, are 
not so easily shipped to places outside Ottawa, but extensive use is made by 
the Ottawa public schools of specimens of animals and Indian relics set 
aside for this purpose. An experiment was made last year in the way 
of preparing special travelling exhibits for loan to schools, colleges, and 
other museums, but the expense of transportation appears to have been 
a deterrent to this service. 
MUSEUM AND OTHER LECTURES 
Lists of the lectures to clubs, societies, and schools, given by officers 
of the Museum during the fiscal year, are given under each of the special 
sections of this report that follow. 
The Museum Lecture series that is given annually in the Museum 
lecture hall continued this year to grow in popularity. The titles of the 
lectures, names of lecturers, and attendances are subjoined. Similar state- 
ments covering the period from 1923 may be found in the Annual Reports 
for 1930-1933. These series of lectures are organized by a committee com- 
posed of Mr. C. L. Patch and Mr. M. E. Wilson. 
The programs follow: 
First Series: 
Some Bird Questions Answered, by Hoyes Lloyd, M.A., Supervisor of Wild Life Pro- 
tection, Canadian National Parks Branch, Department of the Interior, in colla- 
boration with Clyde L. Patch, National Museum of Canada. 
Dinosaurs, by C. M. Sternberg, Geological Survey, Department of Mines. 
