492 
No. 4. (Dammar Soongyi) (Sungei).— ' This weighed nearly four- 
teen ounces, and consisted of irregularly shaped lumps of dark-brown 
resin, which was translucent in thin pieces. The resin was hard, it 
dissolved partially in alcohol or ether and completely in oil of turpen- 
tine, forming a brown opaque solution which dried on wood, leaving 
a light brown, soft, dull “ coat.” 
No. 5. (Dammar Meranti, derived from various Shoreas, of 
inferior quality). — This sample weighed about twenty ounces, and 
consisted of a single lump of opaque, yellowish-white resin, which was 
friable and softened readily when rolled between the fingers. It was 
partially soluble in alcohol or ether, and formed with oil of turpentine 
an opaque varnish which when applied to wood left a dull and sticky 
“coat.” 
No. 6. (Dammar Mata Kuching from Jempol).— The sample 
consisted of a lump of hard, transparent, pale amber-coloured resin, 
weighing about seven ounces. It was free from foreign matter and 
was** partially soluble in alcohol and completely soluble in ether. It 
dissolved in oil of turpentine to form a pale yellow transparent 
solution, which diied on sized wood, forming a hard, brilliant, and 
almost colourless varnish similar to that produced by Sample No. 1. 
No. 7. (Dammar Rengkong ?). — This weighed about two ounces, 
and consited of small pale yellow, hard and transparent tears. It was 
partially soluble in alcohol or ether and dissolved completely in oil of 
turpentine, forming an opalescent solution, which dried on sizfed 
wood leaving a “coat” which was hard, but lacked gloss. 
No. 8 . (Dammar Merawan from a Shorea).— The sample weighed 
nearly two ounces, and consisted of large translucent, yellowish-white 
tears of resin. It was partially soluble in alcohol, completely so in 
ether, and formed an almost colourless solution in turpentine oil, and 
this on drying left a fairly hard, clear, glossy “coat” inferior to those 
produced by Nos. 1, 3, and 6 . 
No. 9. (Dammar strayah) (Seraya). -This weighed about five 
ounces, and consisted of lumps of pale yellowish-brown resin showing 
a laminated structure. It was partially soluble in alcohol or ether. 
The solution in oil of turpentine dried to a fairly hard “coat” which 
was devoid of gloss. 
Chemical Examination. 
The nine samples of resin, when chemically examined, gave the 
results recorded in the following table:— 
No. I. 2, 3. 4. 5, 6. 7, 8. 9 
Melting point 90°c 94 c 8 7 0 c i8o*c 185 c 92 c 200>c 97 °c 190 c 
Ash per cent 0.26. 0.08. 0.05. O.52. 0.03. 0.06. 0.04. 0.25. 0.09 
Saponification number * 4 6.7. 72 . 0 . 3 ^. 5 * 34 - 3 - 7 2 - 0 . 33 *°- 4 ^- 7 . 38 - 5 - 55 -° 
Acid number * 45 - 3 - 7 2 -0. 38 - 5 - 33 - 0 - 72.0. 33.0. 46.5. 38.5. 55 -° 
Ester number * 1.4. - — 1 . 3 * “ 0 * 2 ’ " 
* Milligrams of potash required for one grant of resin. 
