and Strength of Timbers. 
125 
Fussooh or Pnssur. A jungle wood of a deep purple colour ; specific gravity about 
800 ; extremely dry, brittle, and liable to warp. Native boats built of the best species 
of Pussooh, are said to last about three years ; when of good quality it stands against 
the brackish water better than Saul. 
Satin wood. Of a bright yellow colour ; the produce of Ceylon. 
Black rose. A superior species of Sissooh ; from the Malabar Coast. 
Toon. Cedrela Toona. Chittagong. 
Mango wood. Mangifcra Iwlica. Common Indian fruit tree. 
Jungle wood. 
Trinconialeb wood. A neat looking, even wood, in structure like mahogany; 
would probably make good furniture. 
In the following tables, it is necessary to bear in recollection, that the letters re- 
present the following quantities. 
I The length in inches. 
a The breadth or thickness. 
d The depth. 
W The breaking weight. 
A The last deflection. 
IV' Greatest weight whilst the elasticity continued unimpaired. 
$ Deflection ditto ditto. 
The Specimens were all as far as No. 250, 84 inches in length, and 2 inches square, 
with a distance between the supports of 72 inches, excepting Nos. 110,111, 112 and 
113, which were 66 inches between the supports. 
Those from No. 250 to the end were 72 inches in length, 2 inches square, and 66 
inches between the supports. 
TABLE I. 
« 
V 
v- 5 
0 s 
U T 
Names of the 
woods. 
£• 
'5 
cU 
bo 
Greatest weight 
and deflection 
while the elas- 
ticity remained 
perfect. 
To 
*3 
£ 
bo 
a 
'J2 
.S 
.2 
o 
to 
O 05 
Value of 
U 
from the 
formula, 
n JL 
Value of 
E 
from the 
formula 
f»W' 
Value of 
S 
from the 
formula, 
„ i w 
S 07 
s * 
3 
z 
'u 
C* 
CO 
Weight 
in lbs. 
Deflec- 
tion in 
inches. 
ca 
u • 
% 
CQ3 
11 
5 
dA 
“ 4 ad‘ 
MORUNG SAUL. 
6 
Imported 1825, 
905 
450 
.925 
1050 
3.0 
7 
Chowker*, cut from 
884 
450 
1.00 
1170 
4.8 
8 
the side. 
905 
450 
1.05 
1110 
3.7 
9 
Chowker, 2d size, 
935 
450 
1.4 
990 
4.6 
10 
clear of the heart, 
941 
450 
1.5 
1068 
3.5 
11 
1825. 
930 
450 
1.2 
1170 
4.7 
12 
915 
450 
1.05 
1170 
4.6 
13 
1007 
450 
.9 
1158 
5.0 
Mean of the 8 results 
928 
450 
1.128 
1121 
4.34 
602 
9306382 
2522 
31 
Imported 1822, 
1059 
450 
1.2 
990 
4.0 
32 
Neem Chowker, 
1049 
450 
1.15 
930 
3.0 
33 
from near the out- 
1059 
450 
1.1 
1104 
4.0 
34 
side. 
1049 
450 
1.25 
990 
3.9 
Mean results 
1054 
450 
1.175 
1003 
3.72 
696 
8934121 
2267 
* Chowker is a large, tree squared on all four sides ; Dowker of smaller growth, and 
squared only on two sides. ' 
