158 



THE ROYAL SOCIETY OF CANADA 



Alberta Fields 



Date of 



Collection, 



1916 



Amount of 

 Radium 

 Emana- 

 tion per 



litre of gas 



The Unit 

 = 10-12 



curie 



Percentage 

 of 

 Helium 



Percentage 

 of gas un- 

 condensed 

 at the 

 tempera- 

 ture of 

 liquid air; 

 chief!}' 

 nitrogen 



1 Medicine Hat — 



A Cousins and Sissons Well 



B Electric Park 



C Central Park 



2 Bow Island — 



A Well No. 4 



B Pipefrom Wells3, 11, 14 



C Well No. 6 



D Pipe Line at Calgary. . . . 



3 Sufifield-Brooks-Bassano- 



Calgary 



A Suffield Town well 



B Suffield, C.P.R well 



C Bassano 



D Brooks, West Well 



E Brooks, East Well 



F Calgary, Walker Well. . . 



4 Okotoks— 



A Dingman Well 



6 Wetaskiwin-Viking — 



A Wetaskiwin 



B Viking 



British Columbia Wells at — 



A Pender Island 



B Port Haney 



C Pitt Meadows 



April 5 



26 



205 

 16 



13 

 12 

 11 



•29 

 •29 

 •34 

 ■33 



■10 

 ■12 

 •06 

 •09 

 •08 

 •15 



•01 



•05 

 •05 



Approxi- 

 mately 



3 



5 

 5 



11 



5 



16 



5 

 4 



April 10 

 11 

 11 



390 

 490 

 540 



• 028 

 •013 



• 003 



99 

 99 



Results of other ivork on the Radioactivity of Natural Gas. Natural 

 gas radioactivity was first tested in Canada by McLennan in 1904. 

 He estimated roughly the radioactivity of the gas from several gas 

 wells in Ontario and found that the gas at Bow Park was very active. 

 This is confirmed by the figures quoted in this yjaper. At that time 



