REVERSIBLE AND IRREVERSIBLE SYSTEMS UNDER INFLUENCE OF LIGHT. 395 
.verage 
mp^res 
^served 
in 
10‘ 9 
units. 
XI. 
Average 
volts 
observed 
in 
10“ 6 
units. 
XII. 
Calibration 
of 
Nalder Nl, 
in 
centimetres 
(right 
and left). 
XIII. 
Calibration 
of 
Nalder N2, 
in 
centimetres 
(right 
and left). 
XIV. 
Distance 
of 
light from 
quartz 
vessel, in 
centi¬ 
metres. 
XV. 
Distance 
of 
light 
from 
Rubens 
thermo¬ 
pile, 
in 
centi¬ 
metres. 
XVI. 
Intensity 
of light 
measured 
with 
Rubens 
thermopile 
at the 
distance 
given 
by Column 
XVI., in 
millimetres 
(right 
and left). 
XVII. 
Tempe 
rature of 
bath, 
in 0 C. 
XVIII. 
Temperature 
of room, 
in ° C. 
XIX. 
Kind of cell. 
XX. 
Kind of 
light used. 
XXI. 
Volts and ampilres when 
arc was used. 
XXII. 
Photo¬ 
graphic 
plate 
number. 
Solutions. Influence of Concentration. 
120 
106 
19-1 
17-0 
116 
110 
67 
ordinary temperature 
constant 
total light 
acetylene 
14 
122 
106 
19-1 
17-0 
116 
110 
67 
ordinary temperature 
constant 
total light 
acetylene 
88 
106 
19-1 
17-0 
116 
no 
67 
ordinary temperature 
constant 
total light 
acetylene 
127-5 
112-7 
19-1 
17-0 
116 
no 
67 
ordinary temperature 
constant 
total light 
acetylene 
112 
94 
19-1 
17-0 
116 
no 
67 
ordinary temperature 
constant 
total light 
acetylene 
101-5 
101 -2 
19-1 
17-0 
116 
no 
67 
ordinary temperature 
constant 
total light 
acetylene 
111-7 
109-1 
19-1 
17*0 
116 
no 
67 
ordinary temperature 
constant 
total light 
acetylene 
Scale on 
the drum 
of chrono¬ 
graph. 
rature. 
(Both sides of the Ag Plates covered with AgBr; 
Glass Vessel instead of Quartz Vesssel.) 
- 
— 
17-0 
16-0 
89 
123 
48-5 
38-1 
ordinary 
temperature 
constant 
total light 
acetylene 
17-0 
16-0 
89 
123 
48-5 
20-8 
ditto 
constant 
total light 
acetylene 
- 
— 
17-2 
16 -05 
89 
123 
48-8 
2-8 
ditto 
constant 
total light 
acetylene 
_ 
_ 
17-2 
16-05 
89 
123 
48'8 
27 1 
ditto 
constant 
total light 
acetylene 
— 
— 
17-2 
16-03 
89 
123 
45-5 
48-5 
ditto 
constant 
total light 
acetylene 
— 
— 
17-2 
16-03 
89 
123 
45 ‘5 
33-5 
ditto 
constant 
total light 
acetylene 
- 
- 
17-2 
16-03 
89 
123 
45-5 
2-3 
ditto 
constant 
total light 
acetylene 
from 140, 136 millims. to 65 millims., for reasons to be explained in another place. 
LiBr solution (with 200 ohms, shunt of galvanometer) gave:—- 
On the 20th 
July the influence of 
- 
— 
16-0 
16-2 
89 
123 
46-5 
23 
ditto 
constant 
total light 
acetylene 
- 
— 
16-0 
16*2 
89 
123 
46-5 
3 
ditto 
constant 
total light 
acetylene 
each electrode was covered with shellac and paraffin. NaBr solution was taken. No shunt with galvanometer:— 
- 
— 
17-7 
16-0 
115-116 
146 
21-5 
1 
ordinary 
temperature 
constant 
total light 
acetylene 
19 
- 
— 
17-7 
16-0 
115-116 
146 
21-5 
21-5 
ditto 
constant 
total light 
acetylene 
3 E 2 
