158 Knight and Priestley . — The Respiration of Plants 
Table VI. Controls. Electrical Discharge upon Turpentine. No Seeds 
present. 
The figures represent the volume of standard oxalic acid solution required to 
neutralize 10 c.c. of the baryta solution after the passage of the air current. 
Experiment No. 
Estimation No. 
23 
24 
26 
1 
23-59 
23-52 
23-OQ E 
2 
23 ' 6 l E 
23-51 E 
23-12 
3 
23-63 
23-57 
23*11 
4 
23 - 6 l E 
23 - 4 1 E 
— 
The maximum difference here is 0-16 c.c., equivalent to 0-00008 grm. C 0 2 , which is within the 
limits of experimental error. 
Table VII. Effect of Electrical Discharge upon Seeds. 
This table includes preliminary experiments with high current densities. No 
current measurements were made, but a mercury-platinum electrode was used in each 
case. 
Experiment No. 
Estimation No. 
21 
22 
25 
29 
1 
0-0228 
0-0373 
0-0248 
0-0662 
2 
0-0180 
0-0317 
0-0199 
0-0441 
3 
0-0147 
0-0263 
0-0I72 
0-0333 E 
4 
0-0130 
0-0250 E 
0-0160 E 
0-0367 
5 
0-0191 E 
0-0175 
0-0153 
0-0423 
6 
0-0181 
0-0128 
0-0148 
— 
7 
0-0170 
— 
0-0147 
— 
8 
0-0151 
— 
0-0158 E 
— 
9 
0-0140 E 
— 
0-0163 
— 
10 
0-0153 
— 
0-0166 
— 
11 
0-0125 
— 
0-0159 
— 
12 
O-OIIO 
— 
0-0151 
— 
Continued. 
F,xperiment No. 
Estimation No. 
i 37 
138 
I 
o-o 355 
0-0421 
2 
0-0319 
0-0327 
3 
0-0276 
0-0301 
4 
0-02 23 E 
0-0282 
5 . 
O-0252 
0-0230 E 
6 
0-0220 
0-0256 
7 
— 
0-0239 
Table VIII. Continuation of Table VII. 
These results were obtained using a xylol resistance in the electrode (p. 147). 
In Nos. 81-7 inclusive the current density was less than 3 X 10 8 amperes. 
Experiment No. 
81 
82 
83 
84 
85 
86 
87 
Estimation A T o. 
1 
0-0240 
0-0203 
o*oi8o 
0-0230 
0-0260 
0-0224 
0-0I74 
2 
0-0177 
0-0167 
0-0167 
0-0168 
0-0197 
0-0195 
0-0154 
3 
0-0162 
0*0149 
0-0156 
0-0148 
0-0168 
0-0175 
0-0139 
4 
0-0148 
0-0133 
0-0150 
0-0139 
0-0150 
0-0158 
0-0132 
5 
0-0138 E 
0-0125 E 
0-0153 E 
0-0135 E 
0-0132 E 
0-0147 E 
0-0126 E 
6 
0-0134 
0-0121 
0-0145 
0-0135 
0-0125 
0-0138 
0-0122 
7 
0-0127 
0-0114 
0-0144 
0-0135 
0-0120 
0-0129 
0-0116 
8 
0*0120 
0-0108 
0-0140 
— 
0-0113 
0-0121 
O-OII 2 
There is an indication in Experiments 81, 82, 83, 84, and 85 that electrification has caused 
a modification in the respiration curve, but the change was so slight as to be almost within the limits 
of experimental error, and was therefore deemed insignificant. 
