126 
Experiments on the Elasticity 
1 
*E 
c 
o 07 
£ 
0 
s 
£ 
Names of the 
woods. 
Specific gravity. 
Greatest weigh 
and deflectior 
while the elas- 
ticity remain- 
ed perfect. 
Breaking weight in 
lbs. 
Ultimate deflectionin 
inches. 
Value of 
U 
from the 
formula, 
/ 2 
u= Ua 
Value of 
E 
from th 
formula 
Pff 
E= — — 
aa 4 c 
Value of 
S 
from the 
formula, 
4 ad ‘ 
Weigh 
in lbs 
Deflec 
tion ii 
inches. 
53 
MORUNG SAUL. 
894 
450 
1.5 
9 90 
3.7 
54 
1814, Chowker, 
966 
450 
.9 
1442 
3.9 
55 
seasoned prime, in 
925 
450 
.95 
1146 
2.9 
Cossipore Gun- 
carriage yard. 
Mean results 
928 
450 
1.116 
1192 
3.50 
740 
9406451 
2684 
65 
Beam of Tolly 
1060 
300 
1.075 
850 
3.4 
66 
Gunge Bridge built 
1050 
300 
.9 
850 
3.2 
109 
in 1812-13, rebuilt 
1047 
300 
1.075 
89C 
3.4 
1819-20. 
. Mean results 
1052 
300 
l.Olt 
86i. 
3.31 
778 
6888188 
1942 
110 
Neem Saul Chow- 
1050 
450 
1.075 
75C 
3.4 
^ Jj £> 
111 
ker, sap-wood, im- 
1052 
450 
1.525 
95 C 
3.4 
112 
portedl826,ifilerioi 
1040 
450 
1.425 
851 
3.7 
113 
specimens. 
1040 
450 
1.225 
750 
3.0 
Mean results 
1045 
450 
1.312 
825 
3.37 
646 
6162976 
1700 
14 
Dowker, 1825, 
935 
450 
1.0 
1170 
4.6 
15 
clear of the heart; 
827 
450 
1.6 
858 
3.8 
16 
young timber. 
925 
450 
1.05 
1254 
3.0 
51 
853 
450 
1.5 
996 
4.6 
26 
977 
450 
1.1 
1152 
3.4 
27 
1054 
450 
1.35 
930 
3.6 
28 
1007 
450 
1.1 
900 
2.75 
29 
946 
450 
1.0 
1230 
4.4 
30 
935 
450 
1.2 
788 
2.9 
Mean results 
934 
450 
1.21 
1040 
3.7 
704 
8675702 
2340 
2 
1825, cut near the 
853 
300 
.725 
940 
3.3 
3 
heart, young. 
833 
300 
1.0 
918 
4.7 
4 
838 
300 
1.0 
1008 
4.2 
5 
802 
300 
.9 
918 
3.3 
Mean results 
842 
300 
.906 
946 
3.87 
670 
7724503 
2128 
42 
Soondree. 
1022 
500 
1.35 
1300 
6.5 
43 
Seasoned, cut from 
1030 
500 
1.625 
1350 
5.2 
44 
large plank, im- 
1022 
500 
1.55 
1338 
4.7 
45 
ported 1824. 
1047 
500 
1.125 
1260 
5.8 
Mean results 
1030 
500 
1.362 
1312 
5.5 
471 
8075080 
2952 
21 
Teak. 
683 
300 
.85 
1020 
3.9 
22 
Duggy, Rangoon, 
725 
300 
.95 
654 
2.1 
23 
easoned ; suppos- 
634 
300 
.95 
912 
3.6 
24 
id to have beenim- 
682 
300 
.90 
816' 
2.75 
25 
sorted some years. 
714 
450 
1.225 
98. 
3.3 
Mean results 
687 
330 1 
1.006 
GO 
1.13* 
828 
7652326 
1964 
