452 
Proceedings of Royal Society of Edinburgh. [sess. 
Time iD 
Minutes. 
Bridge reading 
in mm. 
Resistance 
Box. 
Conductivity 
in mhos. 
30 
5034 
550 
33 
502-0 
5? 
36 
500*7 
33 
41 
498*4 
5) 
46 
497-2 
5) 
51 
475-0 
53 
56 
494-0 
33 
1080 
462-0 
550 
•001561 
Readings were then taken every hour and 
remained constant 
within 1 mm. The ten-volt 
direct current 
was then passed 
through the 
cell for ten minutes, the electrode in the limb 
containing aluminium sulphate being the anode. The solutions 
were then thoroughly stirred up. 
0 
448 
600 
•001353 
3 
456 
33 
6 
458 
33 
9 
460 
33 
15 
462 
33 
21 
466 
33 
33 
470 
33 
48 
472 
33 
88 
473 
33 
137 
472 
33 
185 
471 
33 
220 
471 
33 
1250 
479 
33 
•001532 
The reason 
for electrolysing with a direct current and the effects 
produced by it will be discussed later. 
In the tables of results which follow, the first column indicates 
the cell in which the experiment was made ; this is desirable, as 
the dimensions of the cells employed differed to a considerable 
extent ; * the second column gives the initial conductivity in mhos ; 
* Tt should be noted that a cell marked A in one table is not necessarily 
the same as cell A in another table. The cells frequently broke at the brass 
joints, and new parts were fitted on. 
