42P 
l^EPOKT OF CHEMICAL LABORATORY 
GAKI)P:N of ADAM AFIFl 
25 ]\[edium-sizel) Trees 
Tnjjpud ill the ordinary native inanncr, February 3rd, 19U7 
u 
..o 
.2 
5 
c -n u 
Viscosity 
of 20 % solution 
A 
o 
rt 
o 
rC 
*0 
U 
"o 
5 
’/C 
u 
jj 
*0 
v 
Yield per tree 
Character of (nini 
Acidity (milligra 
of KIIO requir 
to neutralise oi 
gramme 
Degrees of 
retardation in 
torsion 
viscosimeter 
(irammes of sugar 
pcrlOOc.c. of 
solution required to 
produce the same 
viscosity 
802 
1st 
Mar. 7th. '07 
O-U rotl 
Considerable powdery gum 
2-74 
3-34 
60-5 
OO-A 
8(18 
2iid 
Mar. IGtli, '07 
i)'24 rutl 
More glass}^ and less powdery 
gum 
2-94 
3T1 
42-2 
(i3-7 
S04 
8nl 
Mar. 2Gth. *07 
0-20 rotl 
Like 803, but larger tears 
3-84 
3-11 
.37’2 
G2-8 
305 
4tli 
Apr. 4th, '07 
0T4 rutl 
INfostly soft white gum in 
sized tears 
fair- 
3-14 
3-09 
33-0 
r.2-1 
800 
oth 
Apr. 13th, ’07 
0'12 rotl 
Like 805, smaller pieces, 
powdery 
but 
3'14 
3-0() 
:34-n 
G2'3 
H7o 
Gth 
Aj)r. 24th, ’1)7 
0-07 rotl 
l\Iore glassy 
2-74 
3-09 
28-.') 
01-2 
871 
7th 
May oth, ’07 
0-041 rotl 
Like 870 . 
2-94 
2-70 
25*0 
GO-3 
872 
8th 
Jtay KStli, ’07 
0‘02 rotl 
Like 870 
2-74 
2-89 
22*5 
.•.9-6 
Ta])ped in the native manner, Feliruary 3rd, 1907. Attempted iiioenlatiun. {.S'rr pinic. 422) 
HOG 
1st 
l\lar. 7th, ’<>7 
0-07 rutl 
2-.95 
3..35 
6'2-7 
GG-5 
807 
2iul 
!Mar. 16th, ’07 
0-12 rutl 
2-94 
3-08 
.35-7 
G2-4 
HOH 
3rd 
Mar. 26th, ’07 
(l-lOrutl 
3-54 
3-lG 
•■16-2 
G2-G 
809 
4th 
Apr. 4tli, ’07 
i)*l() rutl 
3-34 
2-90 
30-7 
Gl-7 
873 
.Ath 
Apr. 13tli, ’07 
nTO rutl 
2-94 
32-5 
G2-0 
874 
Gth 
Apr. 24tli, ’07 
. appreciably ligliter colour 
n*0o rotl ^ .0 
2-55 
2-70 
■25.5 
GO-4 
875 
7tli 
May nth, ’07 
U-035rutl 
2-55 
2-89 
2G-2 
GO-G 
87G 
8th 
i\Iay 10th, '07 
^|■(I13 rutl 
2-15 
2-5G 
20-2 
5.S-7 
Tap])cd by making a number of outs or gashes. No inoculation 
814 
1st 
i\lar. 7th, '07 
O-OGO rutl 
2-35 
2-04 
.31-7 
Gl-S 
815 
2iid 
Mar. lGth,’07 
0-04 rotl 
No marked ditfereiice from the 
2-78 
2-55 
27*7 
GO-8 
81G 
3rcl 
i\[:ir.2Gth, ’07 
9-05 rotl 
Kum exudiug by the ordinary 
2*55 
2-8G 
29-0 
G1-.3 
817 
4th 
Apr. 4th, ’07 
0-04 rutl 
methods of tapping, except 
2-15 
2-74 
26-7 
GO-G 
877 
5th 
Apr. 13th, ’07 
0-04 rutl 
that, the amount of gum 
1-95 
2-69 
21-2 
59-2 
878 
GHi 
-\pr. 24th, ’07 
0-02 rotl 
being less, the tears were 
2-35 
3-27 
22*2 
59-4 
879 
7tli 
May .5th, ’07 
0-02 rutl 
smaller 
2-55 
2-75 
21-0 
59-1 
880 
Ktll 
^lay IGth, '07 
0-013 rotl 
2-74 
2-7.3 
23-5 
59-G 
Tapped by a series of small cuts fairly close together. Attempted inoculation. {.sV/’ pitye 422) 
8111 
1st 
811 
2nd 
812 
3rd 
813 
4th 
881 
5th 
882 
Gth 
883 
7th 
884 
8th 
IMar. 7th, '07 0-(i28 rotl 
Mar. loth,'07 0*02 rotl 
Mar. 2Gth,'07 O-OS ndl 
Apr. 4th, '07 0-02 rotl 
Apr. 13th, ’07 0-02 rutl 
Apr 24th, '07 0 (ilG rutl 
l\[ay 5th, '07 O-0U3 rotl 
MaylGtb,'07 0-001 rutl 
All the gum was in small 
pieces, becoming more glassy 
towards the end of the 
season. The colour was 
slightly lighter than that 
of gum from trees tapped 
in the ordinary manner 
•2-94 
3-4-2 
2-74 
3-05 
3-14 
.3-20 
2-74 
3-OS 
2-55 
2-97 
1-77 
2-GO 
1-95 
•2-01 
1-95 
2-63 
35- 5 
G2-0 
29-7 
01-5 
.39-2 
63-0 
28-0 
GM 
24-7 
GO-3 
21-0 
59-0 
2-I-5 
59-5 
23-0 
1 59-7 
