SECTIONAL TRANSACTIONS.—D. 401 
Tuesday, August 12. 
18. (A) Joint Discussion with Section K (q.v.) on Species and 
Chromosomes. (Page 452.) 
(B) Subsectional Meeting as follows (Nos. 19-25) :— 
19. Prof. E.E. Prince.—Biological Board and Marine Research 
Stations of Canada. 
Owing to the close relation of the British Association with the founding of 
the Biological Board of Canada, under which the several research stations have 
a carried on in the Dominion, a special interest attaches to their origin and 
work. 
Following suggestions brought before the British Association at the Toronto 
meeting in 1897, a committee was appointed by the Association, and through 
its efforts the sum of $15,000 was voted by Parliament to equip a station and 
maintain it for five years, and a board was appointed with representatives 
among its members from five universities. 
For some years a floating station was used, but in 1908 a permanent building 
was erected near St. Andrew’s, N.B., and in 1909 a similar Pacific station was 
built near Nanaimo, B.C., and a third one was also carried on for some years 
later on Georgian Bay, Ontario. 
These stations are purely for research purposes, and only qualified workers 
are admitted. Fisheries problems have always been most prominent in each 
season’s programme, but many other important researches have been carried 
on, among which the investigations on insulin are especially notable. Striking 
results have also been accomplished in an extensive survey of currents and 
tidal movements in Canadian Atlantic waters by means of drift bottles, a piece of 
work which has taken on an international character, and which is of great 
importance in connection with the migrations of food fishes. 
20. Prof. A. G. Hunrsman.—The Circulation of the Water off the 
Canadian Atlantic Coast. 
The distribution of planktonic forms, including the larve of fishes, has 
been found to indicate a certain type of circulation. The same type is indi- 
cated by a study of temperatures, salinities, and densities. Extensive series of 
experiments with drift bottles carrying drags have demonstrated the definiteness 
of this circulation, its rate, and certain minor variations. The course of the 
water movement is determined by the rotation of the earth, and is such as to 
keep land or banks on the right hand; that is, clockwise around banks and 
islands, and contra-clockwise around basins. The chief motive power would 
seem to be the tidal oscillations, converted into a circulatory movement by the 
effect of the earth’s rotation. 
21. Prof. A. G. Huntsman.—Certain Limiting Factors in the Distri- 
bution of Marine Animals. é 
An attempt has been made to correlate the distribution of a number of 
marine animals with the extent of certain definite physical conditions. Experi- 
ments have been performed to test the endurance of these animals to natural 
extremes in the physical conditions. Temperature, salinity, and light have 
been found to be effective in limiting distribution, and thus determining the type 
of fauna. 
22. Prof. W. A. CLemens.—Limnobiological Investigations in Ontario 
in Relation to Fishery Problems. 
The commercial and game fishes occupy a very important place among the 
natural resources of the Province of Ontario. In view of this fact the Depart- 
ment of Biology of the University of Toronto has instituted a definite plan for 
the investigation of various problems connected with the fisheries. Its chief 
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