CH AUP THR: Xe VEL. 
HOW TO TEST CANE JUICE. 
Importance to the Manufacturer of some Means by which he may 
learn the Value of any given Sample of Cane Juice—Character- 
istics of Crystallizable and Uncrystallizable Sugars—Microscopie 
Sections of the Stem of Chinese Sorghum and Imphee—How to 
distinguish between Grape and Cane Sugar in the Solid Form— 
Methods of determining approximately the Relative Propor- 
tions of Cane and Grape Sugars, and Impurities in Sorghum Juice 
—The Hydrometer—Subacetate of Lead—Modification of Feh- 
ling’s Copper Test—Peligot’s Test by Sugar Lime. 
It is possible, by means of certain chemical processes, 
to determine accurately the composition of the cane juice, 
and to indicate the precise quantities of crystallizable and 
uncrystallizable sugars in any given sample. To the sugar 
grower it is always of the first importance to have at hand 
the means of ascertaining this, if not with rigorous accu- 
racy, at least to within a close approximation to the truth. 
Often a simple experiment directed to this end, if carefully 
performed by him, will serve as a guide to the mode of 
treatment to be pursued in any given case. It is not ne- 
cessary that he should previously be possessed of any chem- 
ical knowledge; he has simply to become acquainted with 
some of the characteristic properties of the substances 
which are daily passing through his hands. Without this 
he cannot have a competent knowledge of his art. <A pre- 
liminary test, requiring but little time or care, would often 
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