210 TlMEHRI. 
the defect in the ordinary Mill ; and to overcome this loss necessitating 
double crushing, has been the outcome of the improved Cane Mill ; that 
this defect exists is conclusively proved by passing the megass from 
the most improved Mill, without saturation, through a second mill, — 
maceration, and a considerable quantity of juice is obtained. I have 
myself by carefully conducted experiments obtained 8 per cent, addi- 
tional juice. 
By an examination of the model mill you will observe that I have 
succeeded in arranging the rollers in such a way that immediately the 
cane comes into contact with the point of pressure, the juice being 
liberated is free to fall by gravitation and cannot by any means be car- 
ried forward on the surface of the roller as is the case with the ordinary 
mill, to be re-absorbed again, thereby saving the loss of ten per cent. 
As exception may be taken against my argument, that the position of 
the final roller adds to the additional extraction of a Sugar mill, I 
must ask you to look at the two diagrams illustrating my reasoning. 
No. i diagram illustrates the position of one roller placed vertically 
over the other ; it is evident in this case that a considerable amount of 
juice would follow the rotation of the roller and would amount to a loss. 
In diagram No. 2, the final roller is placed in the same position as 
the model mill, and as gravitation acts against the natural law that car- 
ried the juice forward in No. i the juice cannot ascend but falls readily 
and freely away from the surface of the roller and forcibly illustrates 
the hydraulic axiom that liquid matter cannot ascend an incline. 
The megass being delivered by the improved arrangement free from 
absorption of liquid matter as above described will be in better condi- 
tion to be consumed by the general arrangements in use in the colony 
for burning this description of fuel. I have conducted several test 
experiments with the model mill, and the results have been extremely 
satisfactory. I have obtained as high an extraction as 8o per cent, of 
the weight of canes passing through the mill ; this no doubt is a very 
high result, and I am also sensible that experiments conducted such as 
this has been, rather a laboratory one, cannot be taken as a practical 
working test, but I think 75 per cent, may be taken as the working 
result. Having practically obtained this result then I have as good a 
working percentage as is usually given out by double crushing involv- 
ing the use of two engines and two mills, and fully 10 per cent, more 
than the most improved mill, single crushing, in general use, the per- 
centage of which is about 65 per cent, in practical working. 
