DILUTE SOLUTIONS AT THE FREEZING POINT. 



343 



TABLE I.* Sulphuric Acid. ^H 2 S0 4 = 49-04. 

 August 3-4, 1899. Solvent, W = 219'42. R = 40420. 



In Glass Cell. August 6, 1899. 



Potassium. Chloride. Recrystallised salt was dried in a combustion tube in a 

 current of dry air. 



3409 gramme was then weighed out and dissolved, the weight of solution (a) being 

 46'43 grammes. 



Solution (a) thus has a concentration of 9'844 X 10~ 5 gramme-equivalent per 

 gramme of solution. 



This was diluted for the second solution (b). the concentration of which was 

 5 '503 X 10~ 6 gramme-equivalent per gramme of solution. 



* After the publication of the abstract of this paper in the ' Proceedings of the Royal Society,' an 

 arithmetical error was discovered in the reduction of the observations on sulphuric acid. The ionizations 

 given here differ slightly, owing to this cause, from those given in the abstract, the difference, however, 

 never exceeding three parts in a thousand. 



