334 
Samples Referred to in your Letter of 1 st December, Dark amber 
sheet in rolls. The rolls have arrived in excellent condition ; there is. 
however a very marked difference between these and the other rolls, 
in that these are quite free from moisture, not nearly so tightly wound, 
and the sheet does not adhere in the same way as in each of the other 
rolls. The rubber more closely resembles the medium smoked sheet 
on the market. It is clean and very strong. In the present market 
this would probably be more valuable than any of the others, as it 
could be passed as F. A. Q. Smoked sheet. At present buyers look 
for even darker colour than this, that is to say, more thoroughly 
smoked. Value about 5/8. per lb. 
Comparing all the various samples in the most important respect, 
viz. strength, the two cases (your letter 17/10/10) and the three 
pounds post sample (your letter 1/12/10) seem to be about equal. 
None of the other samples are as good. 
I may mention that the question of the excessive percentage of 
“ resin ” present in some of the specimens of smoked Para rubber 
from Singapore has been carefully investigated here. The high 
figures obtained in certain cases have been found to be due to the pre- 
sence in the rubber of a sugar-like constituent, derived from the latex 
which is removed by hot acetone and is therefore included with the 
resin as usually determined. In the three other specimens of smoked 
Para Rubber forwarded with your letter of the nth January the 
percentage of this constituent has been determined and the amount of 
resin corrected. A report on these specimens will be forwarded to 
you in a few days. 
I am, Dear Sirs, 
Yours faithfully, 
(Signed) WYNDHAM R. DUN 5 TAN. 
London , 2 nd February , /<?//, 
Dear Sir. 
In further reply to your letter of the 29th December. 
The samples referred to therein have now come to hand and we 
have had them unpacked for the iast week or two carefully examining 
their condition, etc. 
The samples are as follows: — Dark brown, thin, ribbon in the form 
of rolls. The rubber has arrived in excellent condition, there 
being only the slightest trace, here and there, of any mouldiness 
between the layers. 
The rubber seems to have been thoroughly dried and the curing 
is very even and appears thorough and satisfactory. The rolls in the 
portion marked 5 -lbs. 7% ozs. are rather duller looking and greyer 
than those marked 6-lbs. 12-ozs. which are a richer brown in colour. 
