3bü 



IX. Ammonium Sulphate. 



X. Potassium Sulphate. 



,"o3 taken to be 81.8 

 calculated from Kohlrausch'i 

 data = 82.4. 



:'^ taken to be 84.4 

 calculated from Kohlrausch's 

 data = 83.2. 



XI. Sodium Sulphate. 



XII. Caleium Sulphate. 



'oo is taken to be 72. 



;'oo obtained = 68.2 

 calculated from Kohlrausch's 

 data = 68.3. 



