56 ON THE CONDUCTIVITY, SPECIFIC GRAVITY AND 
These were the only observations made upon potassium sul- 
phate, because E. H. Archibald? had made a sufficient number of 
observations on solutions of this salt, and his results were found 
to agree with mine. Archibald’s results were expressed differ- 
ently. The atomic weights used for determining his dilutions 
were relative to Hydrogen. These dilutions can be changed 
to the above by multiplication by the factor 1.0026. His 
specific conductivities were expressed in terms of 107§ 
times the specific conductivity of mercury at 0° C. These values 
of the conductivity can be expressed in Kohlrausch’s new unit 
by multiplication by 1.069104. The new values for the 
concentration of ions can thus be calculated as in the former case. 
The following table gives the reduced results: 
TABLE III.—PorTassium SULPHATE. 
Pp ! SPECIFIC CONCENTRATION 
DILUTION. CONDUCTIVITY. oF IoNs. 
100.26 TZ 00868 
66.85 16.87 .0125 
40.11 27.27 .0202 
33.42 32.26 0289 
20.06 o1.16 0379 
15.67 63.72 0472 
12.54 78.30 0580 
10.03 95.58 .0708 
8.628 110.7 .0820 
7.193 130.7 .0968 
5.990 152.6 113 
4,991 179.5 133 
3.466 | 244.4 181 
2.888 286.2 212 
2.407 304.5 .248 
2.079 380.7 282 
2.005 392.8 291 
1.444 523.8 388 
1.203 610,2 452 
1.003 716.8 O31 
1 Trans. Roy. Soc. Can. (2), 3, Sec. 3, 69, 1897-8. 
