BY MIXTURES OF ELECTROLYTES—BARNES. 161 
The calculated values in this Table will have a greater pos- 
sible error than those in Table V, due to the greater number of 
experimental data required. In the observed values the possible 
error is the same as before. Considering the many sources of 
error in both these values the above agreement between them is 
very satisfactory. 
Conclusions. 
The above results show that in the case of mixtures of solu- 
tions of potassium chloride and sodium chloride, and of sodium 
chloride and hydrochloric acid, and of all three, it is possible, 
with the ionization coeflicients obtained by the method referred 
to above, and on the assumption that the molecular depression 
of an electrolyte in a mixture is the same as it would be in a 
simple solution of the same total concentration, to predict the 
depression of the freezing-point within the limit of the error 
involved in observation and calculation. 
a 
Proc. & Trans. N. S. Inst. Scr, Vou. X. TRANS.— X. 
