Electrolytes upon Cells of Saxifraga umbrosa . 
569 
Table III. 
Time of immersion required and temperature. Salt : potassium 
dichromate 3 per cent. 
Temperature. 
Date. 
Time. 
Average Time. 
Degrees Centigrade. 
1919. 
Hours. 
25 
• Feb. 28 
1-75 
1.6 
Feb. 28 
1.5 
March 7 
1.66 
13-3 
March 7 
3 
3-25 
March 13 
3.5 
9 
April 2 
3.75 
3.75 
0 
March 21 
4-75 
4-58 
March 27 
4-25 
March 28 
4-75 
Table 
IV. 
Critical times for various concentrations. 
Temperature 25 0 C. 
Concentrations in gram-mols. per litre. 
Times in hours. 
A. KN 0 3 . 
Concentration . 
Date. 
Critical 
Time. 
Average 
'Time. 
LogT. 
Log C+l. 
Value of 
Log T+ 1.77 
C Log C'+ 1). 
1920. 
1.42 
Jan. 14 
0.42 
0.52 
1.72 
1.15 
1.75 
Jan. 27 
0-5 
Jan. 27 
0.66 
Feb. 2 
0.5 
1.19 
Jan. 20 
0.75 
0.77 
1.89 
1.07 
1-78 
Jan. 21 
0.83 
Jan. 26 
0-75 
0.98 
Jan. 13 
0-83 
0.98 
1-99 
0.99 
1-74 
Jan. 13 
1 
Jan. 14 
1 
Jan. 14 
1.08 
0.74 
Jan. 19 
2 
1.83 
0-26 
0-87 
1-79 
Jan. 21 
1-83 
Jan. 26 
1-66 
. 
0-59 
Jan. 26 
2 
2.08 
0-32 
0-77 
1.68 
Jan. 27 
2 
Feb. 2 
2-16 
Feb 2 
2.16 
0-44 
Feb. 11 
4.25 
4.25 
0.63 
0.64 
1-76 
Feb. 11 
4.25 
Feb. 18 
4.25 
Average value of constant in last column = 1*75. 
Maximum deviations from average = 
+ 2 %. 
- 4 %. 
