7iew Eleciro-chemical Phenomena. 
0' t“ 
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appeared equally drawn towards the two electrical poles, but 
the acid vapour passed off in the direction of the positive ball. 
4. The flame of arsenicated hydrogen was attracted by the 
negative surface: the fumes of white arsenic produced during 
the combustion were slightly attracted towards the positive 
pole. 
5. The flame of hydrogen appeared weakly attracted by 
the negatively electrified ball, but on employing the apparatus 
with thermometers, the rise was nearly equal on both sides. 
In one experiment, made with much caution, the thermome- 
ters stood at its commencement at 56^. The gas was burned 
for two minutes : the negative thermometer rose to 62®, the 
positive to 61®. 
In a second experiment, the combustion was continued for 
five minutes: the efiect upon tlie negative thermometer was 
=r 4*, that upon the positive = 2,5®. 
6. With a very small stream of carbonic oxide, the results 
were still less distinct. The tip of the flame appeared in some 
cases to be slightly inclined towards the positive ball, but one 
thermometer was not more affected than the other. 
On substituting a larger current of the gas, which produced 
a flame between three and four inches in length, it was much 
more evidently directed to the positive surface, but the rise 
in the positive thermometer was less than might have been 
expected. In several cases where the combustion was con- 
tinued for two minutes, the rise in the positive thermometer 
did not exceed that of the negative more than 2,5 to 3 de- 
grees. 
7. Sulphur, in a state of combustion, was placed between 
the oppositely electrified balls. The flame being extremely 
