176 



1 'osition of the 

 cut. 



Nature of cut. 



Percentage of 

 crude Rubber in 

 latex. 



Percentage of 

 Resin in the 

 crude rubber. 



1 . A large root 

 exposed by 

 removal of 

 some soil. 



Simple three 

 inch cut. 



43-8 



2.27 



2. The main 

 trunk 1-2 

 feet above 

 the ground. 



J lerring bone. 



44 4 



2.12 



3. The trunk af- 

 ter forking 

 20 feet 

 above 

 ground. 



Herring bone. 



39-» 



1.88 



Some difficulty was found in ensuring the purity of the latex and 

 its collection from different places under similar conditions, and the 

 above results must be regarded as preliminary. Further investiga- 

 tion is in progress. 



It will however be noted that the latex from the higher portion 

 of the trunk are poorer in rubber than the latex from lower down — 

 at the same time the proportional amount of resin in the latex ap- 

 pears to deerease. 



P. J. BURGESS. 



Tengah Bark. 



Frvm District Officer, Dindings, 



To H. N. Ridley, Esq., Singapore. 



20th May, 1 <jo 4. 



Mr. BURN-MURDOCH asked Mr. Borges, Forest Ranger, Din- 

 dings, to write the attached memorandum re Tengah Bark for the 

 Agricultural Bulletin ; it is condensed from a report on the Man- 

 grove growth in the Dindings River. The dye obtained being 

 preferred to ' bakau ' bark dye. There has been a very large quan- 

 tity of it exported from here, so much that the "tengah" has been 

 cut in preference to "bakau " owing to the valuable bye-product 

 furnished by the bark which also strips more easilv. 



R. SCOTT. 



