122 ROYAL SOCIETY OF CANADA 



TABLE VII. 

 Tin No. 2 in tin No. 2. Without radium. 



It was found, too, that the charge did not always remain at a 

 maximum value. With some cylinders it gradually decreased in amount, 

 and in a few of these cases a second rise was observed {viêe Figs. 6 

 and 7). As noted above, with the combination lead No. 1 in lead No. 2, 



TABLE VIII. 

 Tin No. 1 + tin No. 2 in tin No. 1 + tin No. 2. W^ithout radium. 



