449 



(4) That a carpenter's gouge or a modification of this tool is 

 best adapted for tapping, as it does less damage to the 

 trees than the dhao or kukri, and enables the rubber to be 

 collected with a smaller intermixture of foreign matter and 

 dirt (see paragraphs 5, 6, and 7). 



(5) That only horizontal cuts should be made during the tap- 

 ping process, as neither oblique nor vertical cuts yield the 

 same quantity of rubber (see paragraph 10). 



(6) That the expensive application of tar to the wounded trees 



is not justified by any commensurate result, and may be 

 discontinued (see paragraph 14). 



(7) That, so far as experiments have been made, there are 

 grounds for believing that the trees cannot be tapped three 

 years in succession without showing signs of exhaustion, 

 and that if this is proved to be correct, it is also probably 

 only less wrong to tap the trees two years in succession 

 (see paragraph 16 and statement C). 



(8) That neat and careful packing has an important effect on 



the selling price obtained for the rubber in the London 

 market (see paragraph 14). 



