542      Mr.  H.  E.  Hurst :  Genesis  of  Ions  by  Collision  and 
Pressure  1  mm. 
d  
*2 
•3 
•4 
•5 
X=525           q  
'=*£         n  
3-72 
7-66 
16-9 
48-5 
372 
7*55 
1695 
48-1 
/3=-lo 
«  =  -601. 
Xa=316.  V=311. 
Pressure  *5  mm. 
d  
•2              -4              -6 
•8 
H> 
X— 262-5        q 
1-92     ,    3-82         7-61 
i               j 
17-1 
49-5 
a  =3-23 
1-92         377     1    7-68 
17-2 
49-8 
£=•074            
a  =  ri95. 
X«=314. 
Pressure  4  mms. 
d 
•2 
•6 
1-0 
X-350           q  
1-31 
2-25 
3-85 
a  =1'35                   ad 
o           n               ii  — e      
1-31 
2-25 
3-86 
/3  small 
Pressure  8  mms. 
d 
•2 
•6 
1-0 
X— 350          q  
1-03 
112 
1-18 
a  ='17                     ad 
/3  small 
1-03 
1-10 
1-18 
