493 
The results of this examination show that these resins exhibit 
considerable differences in chemical composition and properties. 
They are all, however, partially soluble in alcohol and completely 
soluble in turpentine oil forming fairly light-coloured varnishes, and 
would therefore be classed commercially as dammars. 
Commercial Valuation 
Samples of the nine dammars were submitted for valuation to 
commerical experts, who were also informed of the results of their 
examination. They reported on the samples as follows 
Number 
of Description. 
Sample 
Commercial 
experts. 
comment. 
Commercial values 
estimated by 
experts. 
I. 
2 . 
3 . 
4 - 
5 . 
6 . 
7 . 
8 . 
9 . 
Dammar penak 
„ Kumus 
„ Mata Kuchtng 
„ Soongyi 
,, Meranti 
„ Mata Kuching 
„ Rengkong 
,, Merawan 
‘Clean pale yellow” 
“Black” 
“Pale drop” 
“Black” 
“Chalky” 
“Bold pale” 
“Green like Ceylon” 
“White” 
Strayah (Serayah) “Chalky inferior” 
55s. to 60 s. per cwt. 
20s. per cwt. 
70 s „ 
IBs „ 
10 s „ 
60 s „ 
35s „ 
35S M 
5s to 6s per cwt. 
The prices quoted for the better qualities of the dammars in- 
cluded in this series of samples compare very favourably with those 
obtained in the open market in London, thus on the November 1.905, 
the better qualities of Batavia dammar were quoted at from 70 s. to 80 
s. per cwt. and Singapore kinds at from 30 s. to 75 s. per cwt. (Novem- 
ber 1905). 
(Colonial Reports Miscellaneous No. 63 Imperial Institute Gums 
and Resins 182) 
OIL FROM RUBBER TREE SEEOS. 
The United States Consul-General at Singapore suggests that the 
oil of seeds of Hevea Braziliensis will ultimately be of great commer- 
cial value. He recalls that it was a long time before the oil of cotton 
seeds became a valuable commercial factor. The Consul-General (Mr. 
Dubois) reports that at present there is such a demand for the seeds of 
Hevea for planting that the supply is not sufficient. It is now 
suggested by experts, however, that in erecting machinery on new 
rubber plantations the plans should be made with a view to rubber 
seed crushing machines being included later. This would leave a 
residue on the estates which it is believed williprove good for cattle 
food, as well as a fertilizer for rubber trees. (United States Daily 
Consular and Trade Reports, September 13, 1910). 
