460 AUSTRALIAN NATIVE PLANTS. 
“In civil architecture the Tewart is scarcely, if. at all known 
in England, although it might be employed with advantage for 
many purposes. It would make good piles for piers, and supports 
in bridges, and be useful in the framing of dock-gates, as it with- 
stands the action of water, and is one of the strongest woods 
known, whether to be tried transversely or otherwise. But it would 
probably be found too heavy for generai use in the domestic arts,” 
It is not to be split, and is capable of enduring a great amount 
of heat without rending. It is used for keels, capstans, windlasses, 
naves of wheels, etc., also in the engine-rooms of vessels, where it 
is liable to exposure to great heat. Both this timber and Jarrah were 
used to a small extent in the construction of H.M.S. Hannibal. 
TRANSVERSE EXPERIMENTS. 
(Laslett.) 
. ~) . _ 
Defiections. £¢ :. 2 8 es 
« ca 2 3 ot bie 
Oc 4 aa Y Hs op xo 
uu eS n = . es u s°5 5 | 
ge Bia eo fs 2 th Ze ) 28 ee 
+3} zt cues ac Cue) S) Pal es 
oe ete gee|. oe |) 24.) 2) nn 
cA) S38 SE Pa =o = De The 
aa eve Sa =. a a5 oO 
ae ee = g 2 oe 2 
Be a fhe a 
| 
| Inches Inches Inches. Lbs j Lbs 
I 1.2 +15 4.50 1041 1147 | 942 269.95 
2 1.25 -00 4.50 o72 | 1173 H 829 243.00 
3 | 1.15 -20 5.00 1032 1184} 872 258.00 
4 1.25 +15 5.00 1116 1147 973 279.00 
5 1.35 05 4.85 1017 1170 869 254-25 
6 eta 5 10 4.65 966 1194 | 809 241.50 
| Average 1.24 | -108 4.75 1029 | 1169.16 | 882.23 2579-25 
| 
Each piece broke with moderate length of fracture, and very fibrous. 
TENSILE EXPERIMENTS. 
(Lasle?t.) 
Number of Dimensions of Specific dete | Diet a | 
Specimen, see Eee oraMity broke with. | 1 square inch, 
Inches. Lbs. ; Lbs. 
y ) 1147 32580 8820 
8 1184 44520 11130 
9 oe tS 1173 46900 11725 
10 2 2 O..30 1170 34160 8540 
11 1147 34720 8680 
12 1194 $1240 12810 
Average 1169 40087 10284 
(For Vertical Experiments, see p. 462.) 
