Page:Timber and Timber Trees, Native and Foreign.djvu/321

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XXXVII.]
KAURI PINE.
301

Tabe CLXIII.—Kauri (New Zealand).
Transverse experiments.—Top length.
Number of the
specimen.
Deflections. Total weight
required to break
each piece.
Specfic gravity. Weight required
to sepcific
gravity 600.
Weight required
to break
1 square inch.
Tensile Experiments
With the
apparatus
weighing
390 lbs.
After the
weight was
removed.
At the crisis
of
breaking
Direct
cohesion on
1 square in.
Number
of the
specimen.
  Inches. Inch. Inches. lbs.     lbs. lbs.  
23 c 1.500 .150 3.500 660.0 534 741 165.00
24 b 1.650 .200 3.500 630.0 560 675 157.50
25 a 1.600 .000 2.250 490.0 580 507 122.50
26 a 1.400 .000 3.750 690.0 595 696 172.50 3,412 41
27 b 1.500 .150 4.250 660.0 540 733 165.00 3,220 42
28 c 1.600 .000 4.750 700.0 545 771 175.00 2,485 43
Total 9.250 .500 22.00 3830.0 3354 4123 957.50
Aver. 1.541 .083 3.666 638.3 559 687 159.58

Remarks–These specimens broke with a moderate length of fracture.

E = 636440. S = 1676.

Tabe CLXIV.
Transverse experiments.—Mid length.
Number of the
specimen.
Deflections. Total weight
required to break
each piece.
Specfic gravity. Weight required
to sepcific
gravity 600.
Weight required
to break
1 square inch.
Tensile Experiments
With the
apparatus
weighing
390 lbs.
After the
weight was
removed.
At the crisis
of
breaking
Direct
cohesion on
1 square in.
Number
of the
specimen.
  Inches. Inch. Inches. lbs.     lbs. lbs.  
29 c 1.500 .250 4.750 655.0 498 788 163.750
30 b 1.650 .250 4.250 680.0 528 773 170.000
31 c 1.400 .200 5.000 695.0 553 754 173.750
32 a 1.250 .150 4.500 740.0 560 793 185.000 3290 44
33 b 1.350 .150 4.250 680.0 545 749 170.000 3045 45
34 c 1.350 .250 4.000 705.0 556 761 176.250 3045 46
Total 8.500 1.250 26.750 4155.0 3240 4618 1038.750
Aver. 1.416 .208 4.458 692.5 540 769 173.125

Remarks–These specimens broke with a moderate length of fracture.

E = 735920. S = 1818.