, 1877-04-25

'HC USUAL sugar pFOAuCb WOutu nave OceQ
01,700 lbs. But cane juice of that quail.
ty and quantity c~7utaias about 520,4O5 lbs
of sugar. The loss OF sugar here may be
represented by tie differences. which is
1853 .G62 lbs. lost in fermentation, m)los-
SEES, and scummi'gs.
Without intending any disrespect to the
efforts Of others. I now approach the
position which my 1e Of treating cane
juice has occupied.
1t were an Idle wlste Of words, to fur
Their illustrate the great loss of sugar ia
its manufacture and the so-calIed improve
ments Of latter years. being for the most
part mechanical, and still incomplete. are
but Of sup 'rficial benefit to the planter.
The difficulty which remains to b. sur
mounted Is evidently Of 4 chemical char
acter, and a mechanical remedy is a
Substitution which seldom succeeds be-
low ths surface. II VS. compare the
relative product Of the grea; Damarara
experiment, with the product obtained by
the chemicat treatment Of D.. Sc)f3rn,
we may see suffi Client to illustrate my
meaning. The fact, then, is patent to all,
that we get twice as much sug n by chemj-
cal, as we get by the best mechanical
treatment. Here is, at least, one impor-
tant fact establish ID, that Dr.. ScofF3rn got
-presumably-lIi the contained sugar. In
this direction it was decided success, ard
o lesson to teach Us, that itis possible to
double the common sugar product, By suitable
treatment ofhe cane juic,.
In a word, | sought Cor another " chomi-
ca" AMI found several that were capable
OF producing results similar to those produ-
ced by Dr.. 5. bat, when I reviewed them
rom a sanitary point, | had to erase faster
than | accuma lated them, until all were
gone. This was my soc reward for years
OF study, and experiment. This sanitary
position OF the question having repalied
every chemical addition l proposed, / was
almost forced, to try the imponderaoles.
III put nothing in, l have nothing to take
OUT of the %caDe-juice, and none can remain
to offend the consumer. Galvanism sug-
gested itself, and varied experiments salts
fed my enc uiries. Now came another
difficulty, in the mode of applying it. I
could not expect to see a galvanic battery
operating in u boiling-house. | had disco
vered that a feeble amount of galvanism
is sufficient to coagulate the impurities in
c%ane-iuice, and cause them to fl ,at on tho
surface OF the cold liquid, to be removed
with perfect ease. I succeeded in pertecting
q very simple arrangement, capable OF
generating suffice nt gaIvanism, as it has
proved, by the action OF the juice itself, as
it flows from the mill f; indeed. it may be
sajd to be self-acting. A little scum rises
when the temperature Of thu Juice is raised
to the boiling point when that is removed,
we have tbs lo0g.dsslred clarified cane
Juice, to afford. by evaporation, . larger
sugar product OF uniform good quality.
Subsequent study confirmed M in the
ability Of gaIvanism to do sill that I expec.
ted from it. Professor Brande, I found,
had recorded, in the Philosophical
Transactions tor 1909, that galvanisn can
coaguIate albumen. By its aid ne discove-
red the 7O00th part Of saliva to be alOumen,
when chemicals failed to do 50. Modem
chemistry confirms this decision. Again;
Professor Turner, who never recorded
fact in chemistry before proving it himself,
records the fact thus, Up. 933) -" Gllvan-
ism is one Of the most elegant and delicate
tests which Wa possess Of the presence
of albumen." There is no ambiguity in
such Language, and it remains uncontra-
dicted. It was the confirmation by such
men. anart from a1v experience of nv