84 



Caucused ................................................................................ tons.. 80.3 



First sugar per ton-. .................................................................. pounds.. 146.1 



Second sugar per ton .......................................................... ......... do ---- 



Total first and second sugars 



186.2 

 15.0 



Third sugar. 



Pounds. 



The total sugar in the cane at 90 per cent, juice was..'..... 220.6 



Of this there was obtained 146.1 pounds at 97.50 144.4 



And 40.1 pounds at 91. 6 36 - 7 



Total pure sucrose obtained 181.1 



Left in chips 14.6 



Total left in molassea and lost in manufacturing 24. 9 



(NOTE. The third sugar will not be dried until in May or June, 1888. The esti- 

 mates of third sugar have been made by Mr. E. C. Barthelemy.) 



EXTRACTION. 



The percentage of sucrose left in the spent chips was .73. Sucrose 

 in cane was 11.03 per cent. The per cent, of extraction is therefore 

 11.03 .73 == 10.30 -T- 11.03 x 100 = 93.4 



SECOND TRIAL. 



Another trial was made of the diffusion, machinery beginning Decem- 

 ber 9. Carbonatation was again used, but without lignite or any further 

 treatment. The juice passed directly from the filter presses to the 

 double effect pan. 



The quantity of lime employed was .6 per cent, the weight of the 

 juice. The filtration was perfect. The experiment was remarkable in 

 showing that a perfect defecation can be made with carbonatation with a 

 much smaller percentage of liine than had been supposed necessary. 



The masse cuite was dark, but the sugar a fair yellow. 



Following are the data of the run : 



Second diffusion run. December 9, 1887. 



