57G 



Mr. T. S. Taylor on the Ionization of JJ iff event 



above manner for all the gases and vapours used are recorded 

 in column 2, Table I. 



Table I. 



Gas 



or 



Vapour. 



c 



or area under 



theoretical 



curve divided 



by 7-33. 



Area under 

 experimental 

 curve as mea- 

 sured with 

 plani meter. 



Eatio of area 

 under experi- 

 mental curve 

 to c. 



Eatio of 

 ionizatic 

 gas to th 



Taylor. 



the total 

 ni in the 

 at in air. 



Bragg. 



Eela'tive 



energy 



required 



to produce 



an ion. 



Air 



11-24 



io-oo 



14-73 

 12-65 

 14-05 

 1560 



980 

 966 

 1301 

 1156 

 1251 

 1355 



. 87 

 96 

 88 

 91 



89 



87 



85 

 87 

 84 

 85 



88 



0-99 

 1-33 



1-18 

 1-29 

 1-38 



0-9G 

 101 



1-13 

 1-36 



1-00 

 133 



1-32 

 1-37 



1-00 



roi 



075 



0-85 

 0-77 

 0-73 



H, 



CH 3 I 



CH 4 



C 2 H 5 C1 ... 

 cs„ 





1 Air 



14-64 

 13-81 

 15-01 

 16-72 

 19-42 



1249 

 1206 

 1262 

 1415 



1702 



0-96 

 1-08 

 1-09 

 1-33 



1-00 

 104 

 0-99 



0-88 

 0-74 



100 

 0-97 

 77 

 0-77 



N 



CO, 



0, 



O 4 H 10 O.. 



Air 



13-27 

 15-30 

 17-70 

 18-32 



1182 

 1223 

 1530 

 1527 



1190 

 1535 



89 

 80 

 86 

 83 



103 

 1-29 



1-29 



SO, 



HC1 



HBr 



1 A- 



1 Air 



13-36 



17-68 



89 



87 



1-29 





1-00 

 077 



HI 



1 



t 



The full line curves I, II, and III in fig. 3 represent the 

 theoretical curves for nitrogen, sulphur dioxide, and ether, 

 respectively, as obtained by using the values of c as recorded 

 in column 2, Table I. for the respective gases. The dotted 

 curves are the corresponding experimental curves and, as 

 can be seen, agree very well with the theoretical curves. 

 The agreement between the theoretical and the experimental 

 curves for the other gases was equally as good as it is for 

 those given in fig. 3. In some cases the agreement was 

 much closer. This agreement between theoretical and ex- 

 perimental curves confirms the assumption that the energy 

 consumed is proportional to the ionization produced. 



The ionization at any point of the path of the particle 

 being given by the relation 



1 = 



(r-*>y 



