30 



THE CUBA REVIEW 



THE SUGAR INDUSTRY 



Sugar Central, Preston, Nipe Bay. 



MANUFACTURING WHITE SUGAR AT THE 

 MILL 



The equipment of sugar factories for the 

 direct manufacture of white sugar from the 

 cane is a chemical problem which is l)eing 

 much discussed at present. Recent advances 

 in the study of clarification have now made 

 it possible to manufacture very fine grades 

 of white sugar directly from the juice of the 

 cane. The production of a white market- 

 able sugar which can be stored for any period 

 of time without loss offers a most satisfactory 

 solution to the problem of deterioration, and 

 thus enables the producer to hold his product 

 for the most favorable time of selling. In 

 connection with white sugar the problems of 

 clarification are exceedingly important. 

 Among the new clarifying processes which 

 are being studied should be mentioned 

 various hyposulphite preparations and in- 

 fusorial earth. New decolorising agents of 

 high carbon content, such as Norit and Epon- 



ite are also being investigated both as to their 

 use in refining and in making white sugar 

 upon the plantation. Recent experiments 

 show these new charcoals to be vastly superior 

 to l)one black in decolorising power. 



UNITED STATES SUGAR IMPCRTS 



Sugar received into the United States from 

 island possessions and foreign countries 

 amounted to 3,643,000 short tons during the 

 year ending June 30, 1915, or 233,000 tons 

 more than in the preceding year. Of the 1915 

 receipts, 2,392,000 tons came from Cuba, 

 154,000 from other foreign countries, 640,000 

 from Hawaii, 294,000 from Porto Rico, and 

 163,000 from the Philippine Islands. In the 

 fiscal year 1914, Cuba supplied 2,463,000 tons, 

 other foreign countries 11,000, Hawaii, 557,- 

 000, Porto Rico, 321,000, and the Philippine 

 Islands, 58,000.— 3f oh//? /(/ Crop Report. 



