266 
turn giving their output of rubber from May 20th, previous returns 
having appeared in No. 3, of this Bulletin. 
1 1 
cn 
1 a. 
OJ 
[ 4 J 
1 0) 
1 OJ 
u 
d 
T 3 
f 1 
- 
Date 
‘K 
. — <u 
U J- 
. 5 = 
, r-] 
C /1 
c n 
s 
Cu 
scrap. 
2 
13 
Remarks. 
1903. 
+-» 
0 -d 
<-> 
0 g 
0 Sj 
25 
° 
T 3 
2 
d a. 
6 3 
3 2 
<5 
0 
Z 
z 
> 
£ 
" 
oz. 
OZ. 
oz. 
May, 20 
10 
20 
38 
47 i 
21 
10 
10 
Yield of latex handed 
?3 
10 
20 
42 
6! 
48I 
2gf 
over to Government 
Analyst for analysis. 
3 ° 
10 
10 
2 
June, 4 
10 
20 
* 7 \ 
4 
2i| 
8 
10 
20 : 
26f 
4 
30 1 
It was suggested that the herring bone system of tapping should 
be tried. Five trees of medium size, never before tapped were 
selected for experiment, but if these were also in flower, the results 
obtained cannot by any means be held to be conclusive. This sys- 
tem has been so often described that no further description is 
necessary, beyond the fact, that in this case, the instrument used 
was a half round chisel, very sharp, which enabled a thin piece of 
bark to be shaved off daily without touching the cambium. Two 
herring bones, 2 feet long, tri-ribbed on either side of the central 
channel, were made to each tree, tapping extending for 15 days. 
Practically, no scrap was produced, while the rubber obtained, was 
of a clear white translucent colour, easily soluble in benzine and 
leaving no residue, thus proving it to be a really fine quality rubber. 
Below is a return showing the results of these 15 tappings. 
'—i 
c 
00 
2 \ 
oz. of pressed rubbers. 
9 
5t 
>» >> 
10 
8f 
») • > 
1 1 
7l 
»> >> 
13 
6| 
>» >) 
14 
9 
}> 
15 
nf 
)» 
16 
1 1 
>> >> 
17 
1 °i 
>> >> 
19 
11^ 
*> » 
20 
12 
>» 
21 
14 
j> )* 
22 
13? 
>> 
24 
11 
>> '> 
26 
12 
>» ») 
