Specific Charge of the Ions emitted by Hot Bodies. 549 

 Copper. Positive Ions. 



z. H. 



* 





x. e/m. 



•578 4850 

 •578 4850 



153 



196 



1-50 

 1-275 



238 

 221 



Average values ... 



e/m = 230, 

 //i/H= 42, 



Corrected ... e/m=SQQ. 

 w/H=26-4. 



Silver. Positive Ions. 



z. 



H. 



V. 



X. 



e/m. 



•562 

 •622 

 •622 

 •622 



4850 

 4850 

 4850 

 4850 



160 

 197 

 120 

 158 



1-35 

 1-40 

 180 

 1-70 



225 

 200 

 200 

 235 



Average values ... e/m=215, Corrected ... e/m=342. 

 m/H= 45, fli/H= 28-3. 



Nickel. Positive Ions. 



1 

 g. H. 





V. 





X. 



e/m. 



•586 4850 

 •586 4850 

 •586 4850 

 •586 4850 



305 

 225 

 143 

 183 



1-10 

 1-375 

 1-525 

 1-35 



241 



278 

 218 



218 



Average values . 



.. e/m- 

 . m/H.= 



=239, 

 = 404, 



Corrected ... e/m=380. 

 m/R= 25-4. 



Osmium. 



This metal was not obtainable in the form of foil or strip, 

 so that a filament such as is used in an osmium lamp was 

 employed. The principal effect of using a narrow filament 

 instead of a strip is to broaden out the pattern in the diagram 

 showing the distribution of the ions, so that it is less easy to 

 determine the position of the maximum point. The following 



