572 Williams. — On the Influence of Immersion in certain 
Table IV {continued). 
G. NaN0 3 . 
Concentration. 
Date. 
Critical 
Time. 
Average 
Time. 
Log T. 
LogC+1 
Value of 
Log r+1.91 
{LogC+ 1). 
1920. 
3.18 
June 8 
0-25 
0.27 
1-43 - 
1-55 
2-39 
June 14 
0-25 
June 14 
0-33 
2-18 • 
June 2 
0-75 
0-77 
1-87 
1-34 
2-49 
June 2 
0-75 
June 6 
0-83 
June 6 
0-75 
1-88 
June 15 
0.83 
0-83 
1-92 
1.27 
2-34 
June 16 
0.83 
June 22 
0-83 
1.37 
May 26 
1.83 
1.83 
0-26 
1-14 
2-46 
June 30 
1.75 
June 30 
1-9.2 
1.13 
June 29 
1-92 
2-08 
0-32 
1-05 
2-36 
June 29 2-16 
June 30 2-16 
Average value of constant in last column = 2-41. Maximum deviations = —3 %. 
+ 3 %. 
Table V. 
Formula : log T+ k (lo 
gC+i) 
= K. 
Potassium salts. 
Salt. 
k. 
K. 
Potassium iodide 
2-09 
0-94 
Potassium nitrate 
1.77 
1-75 
Potassium chloride 
1.72 
1.87 
Potassium dichromate 
0-67 
0-23 
Sodium salts. 
i 
Sodium iodide 
1-38 
0-75 
Sodium nitrate 
1.91 
2-41 
Sodium chloride 
2-3 
1-31 
Discussion of Results. 
In each case graphs between log T and log V+ i have been made 
and the points found to lie approximately upon straight lines. From the 
intercepts of these lines upon the axes the values of ' k' have been found. 
In the last column of Table IV the value of 1 k* has been substituted 
in the equation for each salt and the value of the second constant K calcu- 
lated. The ranges of deviation have been shown. 
It will be seen that the time range was limited as it was not possible 
to run the thermostat through the night. In a few cases, where long-period 
experiments were made, a tendency was found for the change in the 
