126 ON THE VISCOSITY 
of the conductivities are multiplied by the constant ’* . Then 
o 2 
these new values are plotted against the corresponding concen- 
trations, on the same coordinate paper, to the same scale as 
employed for equation (12). From these two curves one finds 
by inspection two points, one on each curve, having a common 
abscissa, according to equation (10), and ordinates (C, and C,) 
such that by substituting their values in equation (11) it will be 
satisfied. These points can be found after two or three trials. 
Thus one has determined /,,C,, and C,; k, being found by 
Hoe 
multiplying k, by the constant pe The a’s are now obtained 
ol 
from equations (8) and (9) ; for the reciprocals of the C’s give 
the V's. 
Results of the Calculations on Miztures. 
The following Table VI contains the requisite data for the 
calculation, by formula (3), of the viscosity of mixtures of solu- 
tions of the salts under consideration ; and it shows the agree- 
ment of the values thus calculated with the observed values 
The ionization coefficients of the salts in the mixture are deter- 
mined as above and the concentrations are expressed as in the 
former tables. 
