LXX 



THE ROYAL SOCIETY OF CANADA 



from the outbreak of the War it was found impossible to obtain the 

 necessary balloons from Europe. Since February however, the Ster- 

 ling Rubber Company of Guelph has been manufacturing balloons 

 which are proving most satisfactory and we are now in a position to 

 carry on the investigation at regular intervals. 



In all 18 balloons were sent up in 1914 and 13 were recovered. 

 In 1915 to date 6 have been sent up and 4 have been recovered. 

 The following table gives a summary of records not published in 

 the last Report. 



*Did not reach the stratosphere. 



fAbove 5-3 miles the temperature increased or remained stationary up to 6- 

 miles when it again decreased slowly up to the highest point reached. 



A. Height in miles to beginning of stratosphere. 



B. Temperature Fahrenheit at beginning of stratosphere. 



C. Greatest height, in miles, reached by balloon. 



D. Temperature Fahrenheit at greatest height. 



E. Direction balloon travelled at starting point. 



F. Distance, in miles, of point where balloon fell from starting point. 



G. Bearing of point where balloon fell from starting point. 



At a meeting of the International Meteorological Commission 

 held in 1913, it was decided to carry on a systematic survey of the 

 Atmosphere over the Polar regions during the years that Capt. 

 Amundsen was attempting to reach the North Pole and the Stefansson 

 expedition was likewise in the Arctic regions. During last summer 

 Mr. J. Patterson of the Central office was assigned the duty of instruct- 

 ing certain observers in the far north in taking the observations 

 which this survey would entail and which was to consist of sending 

 off small balloons and following and measuring their flight by means of 

 theodolites. Mr. Patterson during his journey to the mouth of the 



