370 WISCONSIN STATE AGRICULTURAL SOCIETY. 
phate of lime, insoluble and indestructible, and which would 
separate from the sugar in the filter. 
Experiments proved that the sugar candy dissolved in water 
with bisulphite of lime even in excess, would crystalize with¬ 
out loss, and without change, by spontaneous evaporation, at a 
very low heat. But a large quantity of bisulphite used with a 
small quantity of sugar and the mixture heated for several 
hours, so changed the sugar as to render it uncrystalizable. It 
takes a great deal to destroy the sugar, and a small quantity to 
destroy fermentation. 
All the experiments made with sugar candy proved that the 
bisulphite was a substance having a great affinity for oxygen, 
in forming sulphuric acid, and an antiseptic. That it had no 
injurious effect on the sugar. That if it were poured cold on 
the beet grater or the sugar mill, in such a manner as to mix 
with the juice the moment the cells were broken, the juice re¬ 
mained unchanged. It would also endure the heat necessary 
for clarifying the sugar without injury. The time and heat 
employed in the clarification would also completely neutralize 
the bisulphite, and after purification it would leave the juice 
purified from the fermenting matters, and prepared for evapo¬ 
ration, without loss of sugar. 
It als^o possessed great powers of clarification. Eifty parts of 
sugar candy, 250 parts of milk, 250 parts of water, and 50 
parts of bisulphite of lime, at 10° Baume, were mixed togeth¬ 
er, boiled and filtered to separate the parts that were coagula¬ 
ted. The concentrated liquid gave, by polarized notation, a 
mass of perfectly crystalizable sugar of 92 per cent. The 
purification was perfectly easy and complete. The sugar re¬ 
mained intact, notwithstanding the vast amount of casein in 
the mixture; the apparent loss of 8 per cent, arising from un¬ 
crystalizable sugar of milk in the mixture, and not from abso- 
lute loss. 
At the temperature of boiling water, it separates the albu¬ 
men, fibrine, casein and other analagous matters which exist 
naturally in the cane. This separation is effected without loss 
