CHAPTER XXIII. 
OTHER METHODS. 
Description of various Methods of Manufacture heretofore used 
or recommended—The Method of Wray described—lIts Merits 
and Disadvantages—Its Impracticability — Melsen’s Method — 
Specifications—Its Advantages dependent upon the presumption 
that Sorghum and Tropical Cane Juice are identical, which is 
untrue—Further Reasons why Bisulphite of Lime, as a De- 
fecator of Sorghum Juice, is of no Peculiar Value. 
Having in the preceding chapters given the details of a 
system of sugar manufacture from sorghum, which has been 
uniformly successful in my own hands, and which I have 
reason to believe will prove equally so in common use, and 
in which all the main practical difficulties that have bitherto 
stood in the way have been overcome, I shall now trace out 
briefly the outlines of the different processes that have here- 
tofore been used, and define what I conceive to be their 
defects, judging from experiment, and the causes of their 
failure. 
The complex nature of sorghum cane juice, and the 
marked peculiarities which distinguish it from the juices 
of the tropical cane and the sugar beet should not be 
lost sight of in an investigation of the comparative merits 
of different methods of manufacture. These character- 
istic properties require at least a modification of the 
modes of treatment usually applied to the Southern cane 
and the beet, to the extent to which these properties are 
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