X-Rays from Boron and Carbon. 

 Fig. 4. 



153 



Photo E/ectrie Effect 









E/ectron C a /-rent. 









' 



BOPOAi L 



' Pa o'/'a t/'o 



n. 









• 







Js' 



J> 















A cce/erat 



... 



'ny Potential. 



1 



14 



18 



22 



26 



30 



34 



Fig-. 5. 



Photo Electric Effect 

 E/ectron Current. 



CAPBON '/("Radiation. 



A cceierating Po ten tiai 



160 



180 



200 



220 



240 



260 



280 



300 



