Diffusion versus Double Crushing. 237 



care upon the manager, which makes it all the more 

 urgent that he should be supported by absolutely capable, 

 reliable and conscientious officials, who go about their 

 work with as much intelligent understanding as consci- 

 entious zeal. 



Considering that with diffusion we obtain an increased 

 yield of ist Sugar of 20 per cent., the working expenses 

 of this process compared against those of mill work are 

 lessened on all those stages of the estate which remain 

 the same, such as of the growing of the cane, its transport 

 and cutting. The building wages in general become also 

 lessened. 



The weightiest change which diffusion brought about, 

 and which almost threatened to preclude the usefulness 

 of the process altogether was, the depreciation of the 

 exhausted chips as fuel, as compared with megasse, which 

 made it necessary to fall back upon coal, which managers 

 of mill fa6lories had been fortunate enough to do away 

 with. Well, in the first place, the chips have once more 

 gained in value after having passed through the mill, 

 if they are used in suitable furnaces. Secondly, in 

 order to recover 21 per cent, more ist sugar with a. 

 dilution of 20 per cent, or less, it will surely pay to 

 burn a few cwt. of coals. In the third place the coal con- 

 sumption diminishes very considerably with continuous 

 grinding, for with a frequently interrupted grinding the 

 weekly coal consumed remains the same as a rule, whereas 

 the sugar returns diminish greatly, making the coal 

 per ton of ist sugar, of course rise very fast. We 

 again see here how immensely important it is to 

 have adequately trained building officials, who have a 

 thorough command over their working men, able to 



HH 



