27 



The dilution of tbe second mill juice is : 



Per cent. 



Calculated upon the per cent, of total solids 2i). 46 



Calculated upon the per cent, of total sucrose 2H. 21 



The increased extraction brought about by this dilution can not be 

 accurately estimated, but some approximation to it may be made. 



Comparing the amount of sugar in the juice as shown by these 

 samples (see table on p 15) with the amount in the sulphured juice we 

 have the following data for the three weeks during which samples of 

 the undiluted juices were taken : 



This would be only 66.81 per cent, of the weight of cane, which seems 

 pretty low. The basis of calculation is rather unfavorable to the ex- 

 traction, of course, as all juice lost between the mill and the sulphured 

 juices counts against the extraction. Two or three tests of extraction 

 were made during the season by running through a weighed quantity 

 of cane without adding water. These gave results ranging from 64 to 

 68 per cent, of the weight of cane. Probably the most reliable data in 

 regard to the increased yield of sugar from maceration are furnished 

 by the results of a single 



SPECIAL EXPERIMENT 



which was carried through upon a uniform lot of cane, all taken from 

 the same cut. A weighed portion of this cane was run through the mill 

 without water, the juice all collected in gauged tanks, and an accurate 

 sample obtained of the whole body of juice. Another weighed portion 

 of the same cane was then run through in a similar manner, except that 

 the maceration water was turned on. An accurate estimate of the quan- 

 tity of sugar obtained in each case was furnished by the analysis, and 

 the analysis of the juice which was run through without water gave a 

 basis for the calculation of the quantity of sugar in the cane used for 



