Defecation of Cane Juice by Electricity. 73 



sap and a small proportion of "cane juice." As the sap 

 is in the exterior, it is advisable to have canes of the 

 greatest possible diameter, so as to have the sap in the 

 least possible proportion to the juice. Provided always 

 that the cane be full-grown and mature, or ripe. 



It is easy to prove that canes are divided into parts 

 with different fun6lions. Take two half-grown canes ; in 

 one case, scrape off all the rind, and the head will die. 

 In the other, open the cane and cut out all the inside 

 cells leaving only the rind, and the cane will continue 

 growing as though uninjured. In fa6t, canes are con- 

 stantly seen in full growth conne6led to the root by only 

 a narrow strip of rind. 



Canes are brought to the faftory and there either 

 crushed in a mill, or sliced up and diffused. 



Advocates of diffusion claim that, by that method, the 

 greater portion of the sap remains in the chips ; while 

 the sugar from the cells passes out dissolved in the 

 water. This may be so, but the liquid obtained by 

 either method is by no means a mixture of water and 

 sugar, exclusive of other substances ; there is always a 

 large proportion of sap, and the contents of the cells 

 themselves are not pure sugar and water, but contain 

 other vegetable substances. > 



In the liquid flowing from the mills, is contained all the 

 sap both from the rind and from any cane leaves that 

 may be mixed with the canes. 



The problem is, how to separate all the constituents of 

 this liquid obtained from the cane; to retain the water 

 and sugar, and get rid of all the other substances. When 

 this is done, the water is easily evaporated, leaving only 

 the sugar. 



K 



