ELECTRIC DISCHARGE WITH THE CHLORIDE OF SILVER BATTERY. 
181 
ohms resistance, (C.) 0'008504 W, they immediately became tongue-shaped 
and quite pink, 57, fig. 46 ; with 700,000 ohms, (C.) 0-004184 W, 113 
perfectly steady pink strata were formed, and with 1,000,000 ohms, 
(C.) 0‘003125 W, 90 strata, also pink, 58, fig. 46 ; with 6,900,000 ohms, 
Fig. 46. 
(C.) 0-000523 W, the tube was filled with paper-like strata 0'05 of an inch 
apart of a dull pink ; with 12,000,000 ohms, (C.) 0 "000304 W, they widened 
out to a distance of 0"2 inch, and were about 0"125 inch broad. 
The tube was now removed from the pump and retained the characteristic 
property of showing blue strata with a large current, and changing to pink 
as resistances were introduced. * 
Unfortunately, one of the glass cocks was accidentally broken off from 129, 
but the tube was repaired and again attached to the pumps on November 18, 
1876. A series of experiments were made with it, the already described 
phenomena being reproduced, and many of them photographed. 
Up to this time (August 4th, 1876) we had not made direct measure- 
ments of the currents passing in the tubes at the time of observing the 
* According to Du Moncel, the change of colour on the introduction of resistance was first noticed by 
Ruhmkorff. 
