C=" & 
Metals 935 
9. This is a great igotease of deviation 
might be explained by supposing the sin 
ductor than the wires ef, and also the a of the gauge wire, 
better than the end 6. This last difference, which must be the 
smaller, would partly cancel the other i in the first experiment, but 
augment it in this. To ascertain, then, whether superior con- 
ducting power in cd had a part in causing the deviations, cd’, 
ed’, and ed’, were successively compared with ef and e'f’, ab 
still retaining the reversed position. ‘The results gave, 
With ed’, (6.) 2cd’. qa’: ef. b’p: 13260 + 3261.* 
“ od", (7.) cd’. qa’: ef .b’p:.398. + 397. 
«Md, (8.) 2c"d'". qa’ : ef. b’p::7500 : T501. 
10. Granting that the end 6 of ab is inferior in conducting 
power to the end a, it would appear by the result of the 6th and 
8th, that to compensate nearly this inequality in those cases, ed’ 
and e’d” are each inferior to the pair ef. If this is so, we ought 
on restoring the gauge wire to its original position, to have with 
ed’ and with c/d’” a large deviation on the side opposite to that 
of the deviations in the first experiments. Accordingly ab was 
restored to its first position, and comparing ed” with the pair 
ef, the result gave 
9.) 2c'"d’’. qb : ef. ap: :187 + 188. 
With ed’, (10.) 2e’d’. qb : ef. ap: :149 : 150. 
11. These two last results, though they do not coincide so ex- 
actly as the 6th and 8th would require, still break up the uni- 
formity of the first results, and at the same time, while the disa- 
greement between them does not exceed what might easily arise 
from error in the measurements taken in them and the 6th and 
8th, they give a satisfactory account of any deviations greater 
than this. So far, then, as these experiments go, they establish 
the strict truth of our first proposition, that in the same conduc- 
tor the quantity conducted is as the intensity.t 
12. The second proposition would be proved, by showing that 
_ each of the parts into which any conductor may be longitudinally 
divided, conducts its own share of the current, 2 idl of 
the same side, and 
ire cd, a better con- 
. “The measures taken int en experiments of this end the next sists are of 
the same general magnitude with those of se 5th experiment, and are therefore 
omitted. 
t In all the foregoing i cameras except wi ETE: ones, a single pair of 
Smee’s battery was use 
