Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1915-10-20
CHEMISTRY Of
SUGAR UP FOR
DISCUSSION Sc
First Of Series, Of .Technlcal
Papers Read at Opening ;.
$3.50 Session of Convention

With more than 50 members from
various parts Of the territory In at
tendance, the 18th annuaf convention
of the Hawaiian Chemists Associa-
ton convened IN the Library Of Ha-
waii at 8 O'Clock this morning H. P.
Agee, president of the association.
presided and opened the convention.
One of the first matters to be con-
sidered was a letter from the sugar
mill engineers Of Hawaii, inviting the
members of the chemists association
to attend the engineers convention:
which begins next Tuesday morning.
President Agee urged that as many
members Of the cheuists' association
as possible attend. An invitation to
attend the chemists convention was
to be forwarded to the engineers to-
day.
Both of today's sessions were TAX
en- UP with the reading or interesting
papers pertaining to, chemistry in the
manufacture OF sugar, and discussion.
The first paper, entitled "Giueoss DeS
termination" was read by W. B. Nc
Allep, In June, .191b, the president
OF the association requested Mr.. Ne
Allep to assume the duties OF chair
man of "a committee on glucose de-
termiuations. ;e.:....,* :, nj r .~y,,.,.. -,
origiaaI Work eAbapdonsd. -. ,1s.s
As It seemed improbable that time
could be. spared Al, the experiment sta,
ton laboratory for research work on
this subject, stated, Mr., McAllep's pa
Ter, and as 1t would De neither prac-
koh 10
from members Of the committee, in
which the experiment station could
cooperate, the idea of any original in
vestigation was abandoned. .,,.-"
The report dealt with data on the
subject compiled from other sources.
1t quoted at length from paper by
Wedderburn on Reduction OF Copper
Oxide in Alcohol Vapor IN Reducing
Sugar Determinations and Copper An
alysis," which was published In the
Journal OF Industrial and Engineer.
ing Chemistry In July, this year. =
The report goes on to say that seq
eral1 letters were sent out contas aiming
the following questions: - = gs,sS. :. ( !
What method do YOU prefer for,
accurate determined in cane sugar
house products?'H =. -. 4. n
What method do you recommend
for; routine factory work ?ss'tt ~ = l. 4
.,:.'Do you know of any recent work.
along this line (which has made or
promises to make any ifnprot en1ent
on, the conventions methodist, 5o& JlaG -
"woiItd you have sanys objeettdn to-
our, quoting yousIn our report at the
annual meeting of the Hawaiian Che
mists, Association ~ i. ..!!;;l;;;ks !.
!. Replies were received from c. A.
Browne, referee upon sugar Tor the
OF Official Agricultural
Chemists; w c. Taggarts acting d.,
rector of the sugar experiment sta:
ton of Louisiana state university, and
GIL Spencer of the Cuban American.
Sugar Company s:,;rsol.. !
q. L. Spencer replied as follows: -
"The preliminary steps for all the
methods we use are the same, and
are described In the accompanying
proof Sheets / am following your num-
bering in replying to your inquiries:
Very Rapid; Good Results. - I'D
81. For accurate determination pre-
fer a gravimetric method with electro
lytic reduction to metallic copper from
nitric solution, The calculation Is
made using MeisslHfller factors,
Wedderburn's reduction to copper In
alcohol vapor, using a Gooch crucfble,
tsilica), is very rapid and gives almost
this morning on the .Matsonta for-hia