220 
ME. J. ZELENY ON THE VELOCITY OF THE IONS 
The corrected value of U = 8‘42 centims. per second. 
A = 7'42 volts. 
8-42 
v = 5'll8-—:-—- = 1*16 centims. per second, and when reduced to 
o'Ol x 7 - 42 1 ’ 
76 centims. pressure this becomes 1T7 centims. per second. 
T = = -6 second. 
8-42 
A summary of the results thus obtained for moist oxygen for both the positive and 
the negative ions is given in Table XI. 
Table XI.—Moist Oxygen. Summary of Results. 
Reference 
number. 
X. 
U. 
A. 
T. 
Tempera¬ 
ture. 
Gas 
pressure. 
Ionic velocity. 
Negative. Positive. 
1 
6-89 
9-41 
+ 6-04 
•73 
U C. 
15-4 
76-8 
— 117 
2 
6-89 
9-38 
- 5-38 
•73 
15-4 
76-8 
1-31 — 
3 
6-89 
16-8 
- 8-80 
•41 
15-5 
77-3 
1-44 — 
4 
6-89 
16-8 
+ 10-5 
•41 
15-5 
77-3 
— 1-21 
5 
5-01 
8-42 
+ 7-42 
•6 
15-6 
76-7 
— 117 
6 
5-01 
8-68 
- 6-69 
•58 
15-6 
76-7 
1-34 — 
r? 
i 
5-01 
18-8 
- 13’55 
•27 
17-3 
76-9 
1-43 — 
8 
5-01 
18-6 
+15-7 
•27 
17-3 
76-9 
— 1-23 
9 
3-03 
20-5 
+ 27-3 
T5 
15-4 
76-9 
— 1-29 
10 
3-03 
20-6 
- 24-25 
T5 
15-4 
76-9 
1-46 — 
The results are shown graphically in fig. 11. 
Fig. 11. 
