, 1874-01-21
1853 per cent.

9oH17
=--=15.3 per cent.
From this absolute or theoretical percentage
existing in the cane, the quantity of LAG per
cent has been extracted by diffusion. This re-
presents a yield of 95.4 per cent. of all the
sugar actually existing in the cane.
The remainder, amounting to 4.6 per cent,
i to be accounted for as follows
sugar lett IN raSh.-....-..... 10 per cent.
Sugar left in waste ater.......~3. per cent.
4.6 per cent.
In order to compare the yisld of green sugar
IN the diffusion juice with the percentage or
yield obtained from the ordinary sugar mills,
it will be found that the total quantity of juice
in the cane, which is 90 per cent, represents
a yield of 1873 per cent. Of dissolved green
sugar. The yield of the diffusion Juice
being l46 per cent. of dissolved green
sugar represents, therefore, an equivalent
14.6[9O
of--=84.5 per cent. of mill
1913
juice.
The yield of m~iljuice, from the best mills
in existence, is only from 70 to Is per cent,
while the average of sugar mills does not ex-
tract more than 60 per cent. o~fjuice from the
C"iC ulIuSIUu ptOCGSS Is iueTelOI6 Cdpd-
bic of increasing the yield Of the cane by J3
per cent, when compared with the very best
practice of modern roller mills, and ii increases
the yield by AZ per cent, when compared with
the average working of sugar mills in the great
err number OF sugar. growing countries and colo
MES.
5.-cANE TRASH ("BAGAssEl.
The ditn-ion-traSh consists of the small slices
or ribbons of cut cane, from which the saceha-
rIne contents have been removed without des-
troylnS the fibre and structure of the plant.
The slices are solid and coherent, dry very
rapidly when exposed to the action of the sun,
apd without any artificial preparation, and af-
ter a few days. exposure to the SUMS rays, the
diffusion trash is fit to be used as fuel for firing
boilers, evaporators, etc. The only special
provision required for conveniently and econo-
mlcalIy burning the diffusion trash is a special
CRATE with fire bars placed so close as to pre-.
vent the slices from dropping through. The
Crate is divided int STEPS for admitting a suf-
icient supply Of air. The cane trash obtained
III the diffusion process is sufficient for raising
all the steam required for the process, and the
smaller demand for steam power compensates
for the increased quantity Of fuel required for
evaporating the surplus water contained in the
diffusion juice.
6-L A B o I.
The manual labor required for the diffusion
process is not greater than the labor required
for the cane mills, particularly the difficult and
even dangerous work of spreading the cane
upon the feeding bands of the roller mill il
entirely dispensed with. The management and
supervision of thief whole process, when once
practically established, presents no unusual
difficulty, and requires no more attention than
the management of cane mills.
INTRODUCTION OF cRYsTALL1zED
SUGAR AND OF RUM.
The ql4ntitatigo results above given as
regards the production of diffusion Juice from
the cane, contain the complete basis for COM
parisoa between the diffusion process and the
extraction Of juice from the cane by the sugar
mill. These results are Independent of auy
Subsequent method Of treating the juice and Of
crystaIiz.ng the sugar, or Converting it into
other products. The greater or less economy
attained in the Aska works for boiling and
crystallizing the sugar and for the manufacture
OF rum, form no part of the merits of the diffusion
process as such. For completing the imforma-
ton about the last seasons work at Aska, how
ever, the quantities. Of crystalliz4d sugar pro-
duced during one week from tue cane worked