17 



From the foregoing data the losses in manufacture after the sul- 

 phured juice were computed are embodied in the table which follows: 



Table showing losses. 



From the above showing it will be seen that the total loss in manu- 

 facture during the four weeks was 72,361 pounds of pure sucrose of 100 

 per cent, polarization (equal to 73,735 pounds of sugar polarizing 98 per 

 cent., or 14.78 pounds for each ton of cane. This total loss constituted 

 8.03 per cent, of the amount of sugar present in the sulphured juice, 

 which was taken as a starting-point. Of the 8.03 per cent, of total loss 

 3.37 per cent., or about 42 per cent, of the whole, is charged to inversion 

 in the different operations, and 4.G6 per cent., or about 58 per cent, of 

 the whole, is charged to other sources of loss, comprehended under the 

 general head of a mechanical losses." No division of these losses could 

 be made, on account of lack of data. Probably the principal source 

 was in the scums and filter-press cake, the amount of which could not 

 be ascertained with any degree of accuracy. In the first part of the 

 season the loss from this source was particularly heavy, as the capacity 

 of the presses was insufficient, and difficulty was experienced in getting 

 a hard cake. During the last two weeks less trouble was had in this 

 respect. 



7082 Bull. 22-^ 2 



