160 



THE ROYAL SOCIETY OF CANADA 



The Amount of livianation in Various Natural Gases. The unit 

 is the 10" ^ curie. The figures indicate the nun:her of units per litre 

 of gas. 



Atmospheric air — 



At Cambridge, England: Satterly^ 



" Montreal, Canada: Eve^ 



" Manila, Philippines: Wright & Sniith^ 



Air drawn from the Soil— 



" Cambridge, England: Satterly^ 



" Dublin, Ireland : Joly & Smyth* 



" Newhaven, Connecticut: Sanderson* 



" Manila, Philippines: Wright & Smith^ 



" Toronto, Canada: Satterly" 



Marsh Gas — 



At Cambridge, England : Satterly" 



" Caledonia Springs, Ontario: Satterly" 



Natural Gas bubbling up with Saline Waters — 



At Caledonia Springs, Ontario: Satterly'" 



" Caledonia Springs, Ontario: Eve^ 



" Varennes Springs, Quebec: Satterly'" 



" Bath, Hot Springs, England: Ramsay'" 



" Saratoga Springs, New York: Moore & Whittemoore'" 



" Yellowstone Park: Schlundt & Moore'" 



" Banff, Alberta: Elworthy'". . , 



■ 035- ■ 350 

 •060 

 •071 



70-230 

 200 

 240 

 305 



760-1210 



150-360 

 300 



200-300 

 200-600 



800 



33600 



50-800 



7300 



l')l(V3340 



'Phil. Mag., 1908 and 1910. 



-Phil. Mag., 1908. 



=Phys. Rev., 1915. 



■'Proc. Camb. Phil. Soc, Vol. X\T. Parts IV and \'\. 



'Sci. Proc. Roy. Dub. Soc, Vol. XIII, 1911. 



*Amer. Journ. Sci. 1911. 



'This is the first publication of these results. 



sProc. Camb. Phil. Soc. \'ol. XVI, Part IV. 



"Trans. Roy. Soc. Can. 1910. 



'"For full list of springs and references see Bulletin No. 16, .Mines Branch ot 

 Canada, "The Mineral Springs of Canada," Vol. I. The Radioactivity of some 

 Canadian Mineral Springs. 



