T 22 



Description of the Samples. 



\o. i — Gutta Taban Putih from Palaquium pustulatum ? 



The specimen was a conical mass which possessed a curious 

 colour externally, varying from brown to bluish black, but when 

 freshly cut it was almost white within. It was hard, very tenacious 

 and contained very little foreign matter. On immersion in hot 

 water it softened, becoming plastic but not sticky, and could be 

 readily moulded, after which treatment it returned to its original 

 condition on standing. 



\'o. 2. — Gutta Simpor from Palaquium Maingayi. 



This was a rounded cake, light brown externally, but whitish 

 within which had a distinct cinnamon odour, and contained a small 

 amount of foreign vegetable matter. It was hard in the mass but 

 the inner portion were easily friable, whereas the outer layers were 

 tougher and somewhat laminated ; the greater part of the sample 

 was easily reduced to coarse powder in a mortar. It became plastic 

 but not sticky when immersed in hot water and the water acquired 

 a slight v el low colour. After this treatment it hardened somewhat 

 on standing but exhibited little tenacity, readily breaking when 

 bent. 



Xo. 3. — Gutta Taban Chaia from Palaquium polyanthum? 



The specimen was a small rounded mass which was brown 

 externally but much lighter within, and contained a small quantity 

 of vegetable matter. It was hard in the mass and exhibited con- 

 siderable tenacity ; small pieces were slightly elastic and softened 

 a little when held in the hand. When placed in hot water it 

 behaved exactly like the preceding speeimen. but exhibited much 

 greater tenacity after cooling. 



No. 4. — Gutta Minjato from Bassia sp.? from the Langkawi 

 Islands. 



The sample was a rectangular cake, dark brown externally but 

 light brown within, which exbibited a laminated appearance when 

 ( iit and contained a slight amount of vegetable matter. It was 

 hard in the mass but fragments were easily friable, and it could be 

 reduced to coarse powder in a mortar. When treated with hot water 

 ii formed a very soft sticky mass and communicated a slight yellow 

 colour to the water. After this treatment it remained flexible for 

 some time, but finally became hard and brittle, breaking readily 

 with a short fracture. 



\o. c. — Gutta Susu from Dvera sp. from the Langkawi Islands. f 



This was a flat rounded cake, dirty white externally but quite 

 white within and almost entirely free from extraneous vegetable 

 matter. It i> probably identical with commercial Pontianac,* which 

 |l closely resembles in appearance. the sample was fairly hard in 

 the mass but small pieces could be moulded in the lingers, becom- 

 ing sliphtlv sticky. On immersion in hot water it softened, beeom 



