CAPACITr ANT) RESIDUAL CHARGE OP DIELECTRICS. 
131 
capacity is *0038 at — 30° C., whereas it is for the same time *0065 at — 18° C. 
The curves of conductivity are given in fig, 8, and show the same character of 
results as those in the case of glass, fig. 7. 
Piff. 8. 
Table VL 
Time in 
seconds. 
About 
- 18° C. 
About 
- 30°. 
Remarks. 
10 
2800 
866 
Charging volts 890. 8th December, 1894. 
20 
760 
314 
Duration of charge, I minute in each case. 
60 
.377 
74 
Resistance at 94.5 volts. 
90 
347 
44 
- 18° C., 7-2 X 106 ohms; - 30°, 32-5 x 106 ohms. 
Table VII. 
8t]i December, 1894, — 18° C. about. 
8th December, 1894, — 30° C. about. 
Prequency. 
Capacity. 
Prequency. 
Capacity. 
77-6 
•01 
77-6 
■0072 
10 
■019 
9 
■01 
u O 
