The Oxidation of Cane Sugar. 237 



EXPLANATION OF PLATES XXI. and XXII. 

 Plate XXL 



Curves shewing the number of Oxyge?i Atoms "abstracted" 

 from a potassium permanganate solution per molecule of 

 sugar present, on heating for different times. 



A. at lore. ( Vide Table VIL). 



B. at 94°C. ( Vide Table VIIL). 



C. at 84°-5C. ( Vide Table IX.). 



Plate XXIL 



Curve shewing the influence of varying amounts of sugar on the 

 reduction of potassium permanganate solution ; the action 

 being continued for eighty minutes at 8 5^0. ( Vide Table 

 XL). 



