54 NOTES ON GUTTA PERCHl. 



inches diameter, and rarely exceeding 50 to 60 feet in height. 

 Said to yield 1 to 5 catties of prepared gutta, which being- 

 lighter in colour than the last is called white (putih) in 

 contradistinction to red (merali). 



Gutta Merah (Kadayan) ParaBakrui or Para Bolcuri (Ma- 

 rut). A forest tree having trunks 12 to 18 inches diameter, 

 and 50 to 60 feet in height. Foliage small, oblong. This 

 yields 3 to 5 catties of gatta, which is whitish in colour and 



subelastic. 



Gutta or Gniato Eloivj (Kadayan) Para Larall (Murut). 

 Forest tree having trunks 12 to 24 inches diameter, and 

 yielding 6 to 10 catties of gutta, according to size. 



Gutta or Gniato Bulu (Kadayan) Para Bulu (Murut.) 

 A forest tree the trunk of which sometimes attains a diame- 

 ter of 8 to 4 feet and yields 20 to 30 catties of gutta. 

 Leaves 3 to 4 inches long, 1^ to 2 inches broad, glossy 

 green above, and ferruginous underneath. My own opinion 

 is that these last four trees are all different species of Isonan- 

 clra. They are, however, so distinct that the gutta hunters 

 easily recognise them, although at the time the produce of 

 all is collected indiscriminately and, after being mixed, is 

 sold under the common name of Gutta or Gniato Merah. 

 Murton says that the colour of this product " varies accord- 

 ing to the quantity of bark and other impurities mixed with 

 it ;" but the various proportions in which the produce of the 

 different kinds of " Gniato "-yielding trees are mixed, has' 

 I believe, much to do with the colour and quality of the produce. 



Rubber or Caouthouc-yielding Climbers. Elastic rubber, 

 Caoutchouc or Guita Lechak, is obtained from three kinds 

 (species or -varieties) of rough-stemmed, woody climbers, 

 found in the lofty forests beside most of the rivers in North, 

 North-East, and South-West Borneo, at altitudes varying 

 from very near the sea level, up to 3,000 feet. 



The stems vary in length from 50 to 150 feet, and in 

 thickness from 2 to 8 inches, and by the collectors the 

 different kinds are at once known by the colour and corru- 

 gations of the stem or bark. The leaves are 2 to 5 inches 

 Ion?, oblong, lanceolate, and glossy above, and are set op- 

 posite on the thin brown thick-noded branchlets, having 



