3 28 
| Tree I. 
Tree II. 
Girth 4' 2". 
Girth 4' 7". 
1st set wounded or tapped lower side of 
Yield. 
Yield. 
all oblique cuts 
2nd set wounded or tapped upper side of j 
8f ozs. 
ozs. 
all oblique cuts 
3rd set wounded or tapped both sides of 1 
Sf; OZS. 
ozs. 
all oblique cuts (/. c. upper and lower 1 
sides) - - - - - j 
iof OZS. 
S| ozs. 
Total dry rubber - 1 
28£ OZS. 
26! ozs. 
The result of both trees is therefore : — 
Tapping upper side of cuts - - i 7 ozs. 
„ lower side of cuts - - i8| „ 
„ both sides of cuts - - igj; „ 
This tapping commenced on September 1 6th and was carried 
on until September 29th, each tree having been tapped eleven 
times, and l would observe that 7 or 8 more tappings might have 
been made without removing an extravagant amount of bark. I 
conclude from the result obtained that, only one side of each inci- 
sion need be tapped, and that the lower side is preferable. As will 
be seen, the result of tapping the lower cuts is better than the 
upper ones, and nearly as good as tapping both, while the addi- 
tional work is equal to tapping another tree, as much more careful 
work is necessary with the upper cuts to prevent the latex from 
overflowing and splashing outside the channel. 
From these trees I do not suppose that any more, or very little, 
rubber was obtained by three sets of tappings than would have 
been obtained from one set, as will be seen from the following 
result obtained from another tree which is 14 years old and has a 
girth of 5' o|" at 3 feet from the ground. This was tapped in the 
usual way — a centre channel 4' b" high and 5 oblique cuts on each 
side of the channel : — 
September 21st - - 2 \ ozs. 
„ 22nd- - if . 
, 23rd & 24th 7J ,, evening 23rd, morning 24th. 
>. 25th - - 4 n 
,, 26th - - „ 
„ 27th- -5f „ 
„ 28th - - 7 £ „ 
Dry Rubber 32-f 
About 2 lbs of dry rubber in 8 tappings and the latex running 
freclv and increasing daily when the tappings had to be aban- 
doned as more time could not be spared. It will be noted, and 
1 am of opinion that, the latex exudes better when the trees are 
tapped daily than at intervals, but a few days should elapse after 
first opening an incision before daily tappings commence. 
