316 ON THE CALCULATION OF THE CONDUCTIVITY OF 
Copper salt. For this purpose Zinc Sulphate was selected to be 
associated with Copper Sulphate and Sodium Sulphate with 
Potassium Sulphate. 
In Table 1V are given the data for the drawing of the ionic 
concentration-dilution curve for Zine Sulphate. Conductivities, 
dilutions and concentrations of ions are expressed in terms of 
TABBY Vi. 
ZINC SULPHATE. 
Dilution. Conductivity.) |pcoucentalien 
100.0 684 00633 
80.0 665 .00770 
66.66 647 00899 
50.00 610 |) 01929 
40.00 582 01347 
33.33 5d5 OL541 
25.00 520 .01925 
22,22 508 02117 
20.00 | 500 .02314 
16.66 484.0 .0269 
13.33 463.0 0322 
12.50 455.0 .0337 
10.00 430.4 0399 
8.00 414.0 0479 
6.666 400.0 .0556 
5.000 375.0 0694 
4.000 354.5 .0821 
3.333 341.0 0947 
2.500 | 317.0 1174 
2.222 309.0 .1287 
2.000 | 302.0 .1398 
1.666 | 290.5 1614 
1.333 270.6 .1879 
1.176 260.8 .2052 
1.000 248.5 .2300 
