APPENDIX C LXXVII 



at-law or for similar purposes have become a great burden to this 

 Division. Commencing with the January number for 1921, to 

 obviate the necessity for so much copying, we are publishing, in the 

 Monthly Record, the daily maximum and minimum temperatures and 

 daily rainfall or snowfall for some two hundred stations in addition 

 to the fifty telegraph stations. This arrangement will allow public 

 carriers and their customers to gather in future from the pages of the 

 Monthly Record practically all the data needed to settle disputes 

 involving the weather. 



A report on the climate of the Western Provinces, with sixteen 

 large meteorological maps, has been issued. A report on the climate 

 of Ontario is in preparation. 



Special articles for other departments or for provincial govern- 

 ments, tables, maps and diagrams have been prepared during the 

 year. 



Research is continuing into the effect of weather changes on 

 crops, as to yield and quality. Better arrangements have been made 

 for gathering observational material and for its analysis. Mr. 

 Connor attended a Meteorological CcTnference in Washington and 

 made preliminary arrangements for an interchange of certain data 

 on crop growth which will be of great assistance to this Division. 



A study of tree sections in relation to contemporaneous weather 

 changes has been begun and it is hoped that later we may be able 

 to carry back the meteorological history of the dry regions of the 

 West beyond the earliest observations in the early eighties, and so 

 to gain a better idea of the probable incidence and severity of droughts 

 in various districts of the wheat regions. Mr. McDougall's previous 

 training and experience in forestry wall be of great value in this 

 particular field. 



Time Service 



During the year ending March 31st, 1921, seventy-two deter- 

 minations for time have been made with the Troughton and Simms 

 transit instrument of 3 inch aperture. 



The positions of the stars have mostly been taken from the 

 American Ephemeris and British Nautical Almanac. 



The usual observations have been taken frequently to determine 

 the instrumental errors of the transit instrument in azimuth, level 

 and collimation. 



Inquiries for time, both mean and sidereal, have been numerous 

 and the rating of chronometers and watches, both sidereal and mean 

 time, has been carried on throughout the year. 



