BETWEEN THE CONDITIONS OF A CHEMICAL CHANGE AND ITS AMOUNT. 197 



other there was added also a constant quantity of sulphuric acid. To prevent the 

 action being inconveniently slow, the volume of the solution was reduced to 100 cubic 

 centimetres. The numerical results are contained in the following Tables, and are 

 expressed by the curves in Plate XVII. figs. 3 & 4. 



Table III. 



Kj Mng ©8+ 3 Mn S 0^+w B.^ C^ O^. 



Volume of solution 100 cub. centims. Temp. 16° C. Time 3 mins. 



i 



Table IV. 



KjMn^Og+SMnSO^ + lSHaSO^+arHaCaO^. 



Volume of solution 100 cub. centims. Temperature 16° C. Time 3 mins. 



