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Accounts of the work of the divisions of anthropology, biology, 
mineralogy, and palaeontology are given in following sections written by the 
heads of these divisions. No special reports are given for geology and 
geography, although Museum work is being carried on in both these 
subjects by the Geological Survey. Field operations are carried on by a 
large number of parties, the results of which are described in the various 
publications of the Survey. The most important exhibition work being 
carried on in geology is the preparation of displays of the principal ores 
and economic minerals, and their industrial products. Fairly complete exhi- 
bits of this kind have been prepared for coal, petroleum, asbestos, talc, magne- 
site, and clays, during the last year, and similar exhibits of gold, silver, copper, 
nickel, lead and zinc, graphite, and gypsum are being rearranged. Geo- 
graphical exhibits, up to the present, have been confined to maps, relief 
models, and photographs. A large collection of photographs of Canadian 
examples of physiographic forms, selected from photographs taken by the 
Geological Survey and by other Government organizations, has been made 
and provision has been made to supply prints, enlargements, or lantern 
slides of these at cost to universities, schools, and other educational 
institutions in Canada or other countries. A large number of requests for 
these have been received and satisfied during 1926. 
MUSEUM LECTURES 
In 1912 a course of lectures in natural history was begun by Mr. H. I. 
Smith, mainly for the benefit of the school children of Ottawa. At first 
the lectures were held at any convenient time in a vacant room on the top 
floor of the Museum. Planks supported on boxes were used for seats. 
Later some seats were installed in the lecture hall and it was used until 
February, 1916, when the parliament buildings were burned and the 
Museum w r as used temporarily for legislative purposes. During this time 
the Museum lectures were held in schools and other buildings. 
On restoration of the Museum building to its original purpose, the 
lecture hall was thoroughly equipped with seats, projection lantern, 
moving picture projector, and other facilities and the lecture courses have 
been held in it since 1920. Use of the lecture hall is also given free of 
charge to learned societies and other organizations for holding conventions, 
lectures, and demonstrations of scientific or cultural character. The hall 
seats about 250 on the ground floor and an equal number in the gallery. 
A Museum lecture committee consisting of D. B. Dowling, M. Y. 
Williams, and H. I. Smith (chairman)' was appointed in 1921 by the late 
Director of the Museum, Dr. William Mclnnes, to arrange and conduct 
the course. This committee, now consisting of Mr. Smith, M. E. Wilson, 
and C. L. Patch, arranges a series of lectures each year extending from 
November until April. A lecture is given each Saturday morning at 10 
o’clock to children and is repeated in somewhat modified form on the 
following Wednesday evening for the benefit of adults. At first the 
lecturers were secured entirely from the Museum and Survey, but during 
the last two or three years an increasing proportion has been obtained 
from other Government departments. The lectures are illustrated with 
lantern slides and moving pictures. Those on Saturday morning are 
attended by about 1,000 children, so that they have to be repeated, the 
first lecture commencing at 10 o’clock and the second at 11 o’clock. 
