422 FARMERS' INSTITUTES. 



samples were mixed and subjected to analyses. The results of the analyses 

 are, therefore, a true index of the character of the diffusion juices for the 

 entire season. The means of the 76 analyses are as follows: 



Sucrose 5.10 per cent. 



Glucose 3.07 



Total solids 11.47 



SI 



There is one point in the above data to which I desire to especially call your 

 attention. It is shown that the percentage of available sugar in the dif- 

 fusion juices for the entire season was, none. This juice, according to the 

 methods of estimating its value in common use, not only would not yield 

 crystallizable sugar, but, on the other hand, would have had a large quantity 

 of sugar added to it before any could nave been obtained from it in the ordi- 

 nary process of manufacture. The theoretical available sugar in the juice is 

 a negative quantity, namely, — 1.27 per cent. Therefore the theoretical 

 available sugar per ton for 85.5 per cent extraction was— 21.72 pounds. 



We turn now for comparison to the data with identically the same processes 

 employed to make sugar from sugar-cane. 



The sugar-cane, on which these trials were made, was cut in Louisiana 

 October 25-30, and diffused at Fort Scott November 6-7, 1886. The mean 

 composition of the juice from this cane was as follows: 



Sucrose 10.62 per cent. 



Glucose 1.78 " 



Total solids 14.38 " 



The mean composition of the diffusion juices from the above cane was: 



Sucrose 7.16 per cent. 



Glucose 1.23 " 



Total solids 9.86 " 



The purity co-efficient of the mill juices was 73.8, and the purity co-efficient 

 of the diffusion juices 72.6. 



Such was the character of the sugar-cane from Louisiana, with which such 

 favorable results were obtained. The contrast between the yield from this 

 sugar-cane and from the sorgum work at Fort Scott is most striking. In 

 this contrast the sugar-cane employed appears to have had a high sugar-pro- 

 ducing juice, and yet this sugar-cane was much inferior to' that which is 

 usually produced in Louisiana. 



The records of Bulletins N"os. 11 and 15, which are devoted to a study of 

 the sugar-cane of Louisiana, will show how inferior in quality was the cane 

 worked at Fort Scott. In speaking of these experiments with sugar-cane, the 

 editor of the Eevue Agricole, published at Port Louis, Island of Mauritius, 

 in the issue of June, 1887, page 163, says: 



"Finally at Fort Scott, Mr. Wiley has obtained satisfactory results by the 

 employment of diffusion and carbonation, with canes which one ought not to 

 think of employing in the manufacture of sugar, because of their poor qual- 

 ity. It is to be regretted that he did not operate upon canes of a mean 

 richness, that is, containing from 15-16 per cent, sugar, because it is certain 

 that the results would have been much better." 



It is thus seen that in the eyes of practical sugar-makers in the tropics, the 

 sugar cane employed at Fort Scott was of an extremely bad quality. What, 

 then, would these men say of the character of the sorghum canes worked at 



