CANE SUGAR. 



95-0 per cent, (see previous Table) is obtained, leaving 5 per cent, in' the 

 megass ; if, to this megass 10 per cent, water on weight of cane is added with 

 complete admixture, and the megass be again crushed to 50 per cent, of fibre, 



of the sugar remaining ,, . ^ m _ partis obtained; substituting for/ -10, for 



m '50 and for w -10 this expression reduces to -5 ; hence of the five parts of 

 sugar remaining in the megass 2-5 are extracted, and the total extraction 

 becomes 95-0 + 2-5 =. 97-5, compared with the 96-6 obtained when the whole 

 twenty parts of water were added in one portion. This possibility of adding 

 the water in two equally effective portions is a strong argument in favour of 

 the twelve-roller mill. In the annexed table is calculated the maximum 

 extraction to be obtained in a twelve-roller mill, with double saturation and 

 complete admixture of the added water, which is added in two equal portions 

 behind the second and third mills. The dry crushed megass is taken as having 

 45 per cent., and the saturated crushed megass 50 per cent, of fibre. The 

 result of the calculation shows an advantage in favour of double maceration 

 of the order of 1 per cent. 



Table showing the maximum extraction to be obtained with double maceration 

 with complete admixture of added water ; dry crushed bagasse containing $.5 per 

 cent, fibre and saturated crushed bagasse containing 50 per cent, fibre. 



Extraction due to saturation in upper, and total extraction in lower, line. 



Water added per 100 cane. 



210 



