74 TlMEHRI. 
to become smaller until there is no profit at all at 4 deg. 
Beaume, and a loss commences which amounts to 
$3 52 per ton of sugar, when the juice has been reduced 
to 1 deg. Beaume. In the preceding the cost of evapo- 
rating machinery and that of a third mill or centrifugal 
have not been taken into account. With the present low 
prices of sugar a good deal has been said and written 
about the feasibility of applying the diffusion process to 
the sugar cane as is done with the beetroot. It should 
be borne in mind, however, that the residue of the beet- 
root is not fit for fuel and that by diffusing out most of the 
sugar this residue will still be good as food for cattle, or as 
manure. The conditions are different with the sugar cane 
and the greatest gain to be obtained by diffusion, which is 
in this instance the same as maceration, consists in reduc- 
ing the juice of the second mill to 7 deg. B. or to 6 deg. 
B., should the crushing of the first mill be better than 
60 per cent, and the sugar in the cane more than 14*7 
per cent. 
It is in the manipulation of the juice after it has been 
expressed from the canes, that we chiefly have to 
look for improvement. 
