96 MANUAL FOR SUGAR GROWERS. 



turned from time to time. At night, or in damp 

 weather, the cake is broken into small pieces, say 

 one- to two-inch cubes, and placed on shelves made 

 of galvanised iron-wire netting of one-inch mesh. 

 These shelves should be placed one above the other, 

 about eighteen inches apart, and may extend from 

 near the floor to the roof of the room they occupy. 

 A free current of air should be maintained through 

 the room, and rain be carefully excluded. When 

 thoroughly dry the cake should be ground in a 

 mill to a fine meal, and then may be stored in 

 casks. It is advisable to spread the meal in a thin 

 layer on a dry floor, and turn it occasionally, to dry 

 it thoroughly, before packing it in casks. Thorough 

 drying is of the utmost importance. It is well to 

 have two hand-mills, one to break the cake into 

 small cubes, and the other to grind the dry cake to 

 meal. 



The cake from the press is valuable as manure, 

 and, after it has been eaten by the stock, a large 

 proportion of the constituents of manurial value 

 will be recovered, if the cattle-pens and stables are 

 well arranged. 



From the analyses it will be seen that as dried 

 scum-cake contains about twelve to fourteen per cent, 

 of phosphate of lime, and superphosphate contains 

 thirty to thirty -three per cent., five hundredweight 

 of scum-cake will be required to take the place of 

 two hundredweight of superphosphate, and this 

 will contribute about eleven pounds of nitrogen, 

 equal to thirteen and one-half pounds of ammonia, 

 or about half a hundredweight of sulphate of am- 



