298 
TIMBER AND TIMBER TREES. [chap. 
considered one of the best woods for working that the 
carpenter can take in hand. 
There are many experiments on the strength of the 
Kauri Pine, and the first to be noticed are on specimens 
taken from the butt-end of a log that 
was fully 60 feet in length and 22 
inches square. A plank 2 inches thick 
having been taken out of the middle, 
it was cut to produce six pieces of 
2 x 2 x 84 inches, four upon one side 
FIG - 33 - of the centre or pith and two upon the 
other (Fig. 33). The centre piece was excluded from 
the test as being of too weak a nature to bear com¬ 
parison with the rest of the wood. 
Table CLX. —Kauri (New Zealand). 
Transverse Experiments. 
Number 
of the 
specimen. 
Deflections. 
Total 
weight 
required 
to break 
each 
piece. 
Specific 
gravity. 
Weight 
reduced 
to 
specific 
gravity 
600. 
Weight 
required 
to break 
1 square 
inch. 
With the 
apparatus 
weighing 
390 lbs. 
After the 
weight 
was 
removed. 
At 
the crisis 
of 
breaking. 
Inches. 
Inch. 
Inches. 
lbs. 
lbs. 
I d 
1-25 
•OO 
375 
818 
525 
934 
I3I-25 
2 C 
1-25 
•is 
4‘ 2 5 
875 
529 
992 
132-25 
3 b 
i'IS 
•IO 
4‘20 
820 
529 
930 
132-25 
4 a 
1-05 
•00 
375 
750 
520 
865 
I30-00 
5 a' 
I -IS 
•10 
3 - 4 ° 
760 
515 
885 
128-75 
6 b‘ 
1-50 
•15 
4’!5 
870 
562 
929 
140-50 
Total . 
7 ‘ 3 S 
•50 
23-50 
4893 
3180 
5535 
795-00 
Average 
1-225 
•083 
3-916 
815-5 
530 
917 
132-50 
Remarks. —These specimens broke with a moderate length of fracture. 
E = 790810. S = 2141. 
The table shows that transversely the strongest 
point was much nearer to the more recently-formed con- 
