ELECTRIC DISCHARGE WITH THE CHLORIDE OF SILVER BATTERY. 103 
In all cases either four or five cliarges were made, because the quantity of gas evolved 
is extremely small. The voltameter was specially constructed and subdivided, with 
a sufficient space between each division, to 0‘02 of a cub. centim. 
Charge, ■with 
Mixed gases evolved. 
Temperature. 
Barometer. 
No. of cells. 
cub. centim. 
Cent. 
millims. 
I. 
1080 
0-0075 
19-8 
759-19 
2160 
0-0150 
3240 
0-Q250 
II. 
1080 
o-oioo 
20-8 
756-14 
2160 
0-0150 
3240 
0-0250 
III. 
3240 
0-0247 
19-1 
725-92 
IV. 
3240 
0-0278 
22 - 2 
755-13 
Charge with 3240 cells reduced to 760 millims. and 0° Cent. 
Mixed gases, 
cub. centim. 
1 0-02276 
II 0-02256 
III 0-02L56 
IV 0-02487 
Mean 0'02294 
Taking 1000 cub. centims. at 760 millims. and 0° Cent, of mixed gases at 
0*5365 grm., tire charge is represented by — 
0*02294x0*5365 A nnnm">on>7 , i i 
= 0 000012307 grm. water decomposed, 
equivalent to 0 '000 166 145 grm. silver reduced. A Weber of current flowing for one 
second would, according to Kohlrausch (Pogg. Ann., vol. cxlix,, 1873), reduce 
0 - 0011363 grm. silver, and this being the quantity contained in a condenser of one 
farad when charged to a potential of 1 volt, we have — 
0-0011363 X 42-8 X 3240 X T03 
1,000,000 
= 0*0001623 grm. silver, 
reduced by the charge of the 42"8 microfarads at the potential of 3240 AgCl cells. 
The ratio of the value observed by us (0*000166145 grm.) is to that calculated 
from Kohlrausch’s numbers, as 102 - 3 to 100. 
The quantity of electricity which flows into an accumulator to charge it fully, is in 
direct ratio of the number of cells ; the potential also is proportional to the number of 
cells in series used to charge it, so that the electric energy is in the ratio of the 
capacity multiplied by the square of the potential. 
Cells. 
I. 
Ratio, 
11. 
Ratio 
Mean 
1080 
1*00 
1-0 
1-00 
2160 
2-00 
1-5 
1-75 
3240 
3"33 
. 2-5 
2-91 
