126 
MR. W. CROOKES ON REPULSION RESULTING FROM RADIATION. 
made less sensitive by the control magnet, and the candle was placed 200 miUims. off. 
Exhaustion was then commenced, and observations were taken as recorded in the 
following table, each result being the mean of several observations :— 
T. 
C. 
s. 
F. 
millims. 
millims. 
millims. 
129 
200 
1 
4" 
55 
55 
2 
21 
55 
5 5 
3 
1- 
89 
55 
1 
3- 
55 
55 
2 
3- 
3 
1- 
64 
55 
i 
6-5 
55 
2 
3- 
55 
55 
3 
2- 
42 
55 
i 
6- 
55 
55 
2 
3- 
55 
55 
3 
2‘ 
27 
1 
12- 
55 
55 
2 
6-5 
55 
55 
3 
3- 
14 
1 
17- 
55 
55 
2 
9- 
55 
55 
3 
5- 
9 
55 
1 
23-5 
55 
55 
2 
16- 
55 
55 
3 
11- 
4 
1 
41- 
55 
55 
2 
34- 
55 
55 
3 
30- 
Fig. 29 shows the curves formed when the tension in millimetres and the force of 
repulsion at the three distances of the screen are taken as abscissse and ordinates. 
Fig. 29. 
