produced from a Gas by High-Speed Cathode Rays. 2L7 



For the case of hydrogen, the same examination was tried, 

 and the same correction was made as in Ihe case of air. 

 The corrected results are given in Table IV. 



Table IV. — Hydrogen. 



Velocity of 

 Primary Rays. 



volts. 

 v = 



15.500 

 volts. 



1000 



11.400 

 volts. 



100-0 



7500 

 volts. 



1000 



Mean. 

 100-0 



0-3 



94-8 



9(v0 



96-8 



95-9 



0-5 



83-4 



84-2 



84-8 



84-1 



0-7 



745 



77-7 



75-8 



760 



10 



635 



643 



64-4 



611 



1-5 



55-5 



53-5 



56-1 



55-0 



2-0 



48-9 



48-8 



50-0 



49-2 



2-5 



451 



44-7 



434 



44-4 



3 



37-1 



41-1 



40-3 



39-5 



4 



351 



35-9 



364 



35-8 



5 



31-0 



32-1 



33-4 



32-2 



6 



295 



283 



31-6 



29-4 



7 



26-7 



26-0 



28-3 



270 



8 



249 



24-1 



25-4 



24-8 



10 



204 



21-4 



20-3 



20-6 



14 



16-5 



16-1 



16-7 



16-5 



20 



117 



12-7 



13-8 



12-7 



30 



1041 



9-90 



9-65 



9-99 



40 



7-96 



7-70 



7-55 



7-74 



70 



4-59 



4-44 



4-53 



4-52 



110 



3-08 



3-07 



3-22 



3-12 



150 



2-60 



229 



2-28 



2-38 



190 



1-93 



1-92 



1-74 



1-87 



230 



1-73 



1-58 



1-59 



1-63 



270 



1-45 



1-40 



1-37 



1-41 



310 



1-30 



1-32 



1-12 



1-25 



390 



113 



0-985 



0-919 



1-01 



490 



0-935 



0-835 



0-783 



0-84 



590 



0-785 



0656 



0575 



0-67 



690 



0-515 



0645 



0-355 



0-505 



790 



0354 



0-275 



0-251 



0-293 



990 



0493 



0-116 



0-042 



0-120 



1190 



















1390 



















1590 



















1990 



















§ 10. General Conclusion. 



As is seen from Table III., the currents for each value of 

 v are nearly equal. Hence we can conclude that the distri- 

 bution of the velocities in the secondary cathode rays from 



