316 



Wounds 

 quickly and 



tapping seem to heal much more 

 from 



were done by the same coolie) probably the extra irritation from 

 the three cuts of the latter prevented the regular healing of the 

 wounds. 



" There is practically no difference in yield per tree by either 



method of tapping but the "half herring bone" system has 



required the excision of 189 square inches of cortex for each 



pound of dry rubber obtained whereas the "Y" system only 



requires the excision of U7 square inches to obtain the same 

 amount. 



"This year's experiment will be the comparison of 50 

 tapped on the " Y " system against 50 trees tapped on " 1 " 



trees 



system. 



" One hundred and fifty five (155) Para rubber trees in Govern- 

 ment experimental Gardens at Tenom were planted, not before 

 December, 1900 nor after July, 1902 (exact date is uncertain as 

 no records were kept). The plants have been uncared for and 

 allowed to grow as they liked with the result that one quarter of 

 them have two or three stems; this lowers considerably the 



in these calculations each separate stem is 



average girth 



regarded as a separate tree : even then we get an average girth at 

 live to six and a half years old of twenty-one inches at three feet 

 irom the ground, and the average increase in the girth during the 

 last twelve months (ending 31st July, 1907) is four and three- 

 quarter inches (Singapore "Rrvtsmin a»*A<™ r. anM A a •« v^wae. nf 



3' 



inches). 



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