Electrons by Metals under Influence of Alpha Rays. 473 

 Table III. 



Al. Foils 

 Thick. Thin. 



Al. 



Cu. 



Au. 



Pb. 



Pt, 











16-27 



1467 



15-47 



1357 



15-87 







1 



7-82 



772 



7-92 



7-87 



7 72 



1 







8-07 



8 07 



8-07 



8-07 



8-07 



2 







8-53 



8-58 



843 



8-53 



8-41 



3 







917 



902 



8-82 



9-32 



9-08 



4 







9-77 



9-67 



962 



9-57 



9-60 



4 



1 



9 83 



9-82 









4 



2 



10-12 



9-92 



9-82 



9-85 



9-90 



4 



3 



10-24 



999 



999 



1004 



994 



4 



4 







1005 





10-00 







1031 



10-16 



10-19 



10-26 



10-11 



5 1 



1045 



10-25 



10-25 



10-35 



1025 



5 2 



10-21 



10-00 



10-31 



10-41 



10-26 



5 3 



971 



956 



10-11 



10 06 



9-96 



5 



4 



6-35 



7 95 



8-30 



8-30 



8T5 



6 







2-45 



2-65 



2-29 



2-41 



2-51 



6 



1 



1-43 



1-73 



1-56 



1-25 



1-61 



6 



2 



•14 



•77 



•06 



•73 



•83 



Fijr. 3. 



— „ 









1 



~ - — __ ;, 



oc-; __ 













! 





p 



i 







/ 



| ! 





x -Aluminium 

 +-C-CLD 

 o-CCPPE!? 

 O -PLATINUM 



/ 



1 







• -UA3 



I 



/ 



/ 

 8*«j 



. _ 



'- 



! 



10 

 CURRENT 



forced to conclude, therefore, that the ionization curves as 

 observed, for all metals, have the same form. This is in 

 agreement with the results of the less accurate experiments 

 upon gold and aluminium described in the previous paper. 



