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56 . ASSOCIATE COMMITTEES National Research Council. It was decided to make arrangements for thtse tests as soon as possible. Associate Committee on Biophysics As previously reported a conference on biophysics was held in Toronto in February, 1930, at which there was a general discussion of important problems awaiting investigation in the field of radiology, especially in re lation to the treatment of disease. At this conference a subcommittee was appointed to go over the whole list of problems suggested, consider the advisability of research, and report back to the main committee. A meeting of this subcommittee was held in Toronto on October 16, 1930. In the absence of Dr. Tory, chairman, Dr. Boyle, Director of the Division of Physics in the National Research Laboratories, presided. In view of the fact that in the therapeutical use of radiology, which is rapidly increasing, there is little precise knowledge as. to the proper wave lengths to use or the optimum time and intensity of treatment, it was agreed that standardization in dosage is of fundamental importance. After a full discussion the committee recommended to the National Research Council that provision be made as soon as possible in the National Research Laboratories for the standardization of measurements of radium, X-rays, ultra-violet and other light, high frequency radiation, and heat radiation. Steps to that end are now being taken. It was recognized tb&t this meeting of the subcommittee was only a preliminary discussion, and that a very large field exists for research in biophysical problems. It is anticipated that provision will be made for this in due course, although at present the work which can be undertaken is seriously limited by the inadequacy of the funds available. While not carried out under the committee, it is of interest to note that work on high frequency radiation in relation to chemical reactions and selective heating of animal tissues is under wav by Dr. J. C. McLennan in the Physical Laboratory of the University of Toronto. The progress of this investigation to date is summarized on page 114 of this report. Associate Committee of Chemists Two meetings of the committee have been held during the year ur.ctr review, both in Ottawa, on January 4 and May 29, 1930. Dr. G. S. Whitby, Director of the Division of Chemistry in the National Research Laboratories, presided at both these meetings, having succeeded to the chairmanship previously held since the organization of the committee by Dr. R F. Ruttan, now deceased. i At the earlier meeting Dr. Tory briefly reviewed the work of the National Research Council arid outlined the plans for the National Research Laboratories. The committee discussed in particular the arrangements being made for Researches in pure and industrial chemistry. The question of the production of artificial fertilizers in Canada vss considered at some length. Messrs. B. L. Emslie and R. J. Walley presented l I j ] j j I * papers dealing with v results of recent work the need of fertilizers, a need for a compreh sented a discussion or. Mr. TV. A. P. Sc: of the Stevens consis tests carried out with viscosity coefficients, in Canada because ( weather. Dr. Bruce Macal: in the study of vitan portance to human bExtensive application of poultry. The chairman ou-. the National Research assistance of the cor problems that should 1 At the May meet! question of chemical scale, and available sc length, especially in r Weed Control. For d Mr. Lathe gave t importance of the pro' 250,000 tons per year classes of screenings vwas regarded by the National Research La formation as possible The chairman ga National Research La' wool, and laundry pr committee regarding-! in some detail by the Mr. S. J. Cook, the question of impor. work is directed towar and the possible dev< to know in detail pre domestic production. ; to the problem unde: committee as of imp effort should be made detailed information under favorable cond:'