﻿996 



Mr. M. F. Skinker on the 



Z . 



jQ The values of W and k are plotted against — in figs. 3-6. 



together with the curves for hydrogen and nitrogen. 



Fig. 3. 



60 







i 

















/ 













50 



w<io" f 





















s / 





w 



*y 







4o 

 50 







/ 

















/ , 

































h 















20 



/// 

















10 



9 











f 







2 4 6 8 10 12 14 



Fig. 4. 













\f 



/ 













/ J 



/ 



1^0 



fxid r 



&y 



/ 











/ 













100 



/ 





fo 























l j0 



/ 















/ 









i 



p 





10-20 50 4o 50 6o 



