Phil. Mag. Ser. 6, Vol. 27, PL II. 



Fig. 2. 























iU. 





















M 





















Ik 









































lb 

 IX 



S 



4 























M J 



















£j AlL 



















ATZT^ 

















2 



If 



s 



12 



lb 



20 



U 



2£ 



32 



O 



















o 



^ m 5 



SI 



■o— Sr"^ 



o U 



o 6 





10 



IX 



IU 



lb 



Recovery Curves of Uranium Oxide. 



A. Weight of film 1 # 96 grams or 8 mg. per cm. 2 



B. Weight of film 03 gram or 1*2 mg. per cm. 2 

 A I., BL, preparation bare. 



All., BIL, preparation covered with celluloid screen. 



A III. Difference curve by subtracting from A I. the curve All. with the ordinates increased 

 by the factor 1'15. 



