Page:Timber and Timber Trees, Native and Foreign.djvu/308

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The specimens Nos. 1 to 6 were selected pieces, but not all taken from the same tree.

The following were taken from a continuous strip cut the whole length of the tree.

Table CLIV.—Pitch Pine (American).
Transverse Experiments.—2nd Example.
(Butt to Top, inner part of the tree. Fig 32a.)

Number of the specimen.	Deflections.			Total weight required to break each piece.	Specfic gravity.	Weight reduced to specfic gravity 600.	Weight required to break 1 square inch.
	With the appartus weighing 390 lbs.	After the weight was removed.	At the crisis of breaking.
	Inches.	Inch.	Inches.	lbs.			lbs.
07	1.250	.100	9.750	860.00	932	554	215.00
08	1.250	.000	5.000	1020.00	764	801	255.00
09	1.250	.000	4.500	990.00	682	871	247.50
10	1.350	.000	4.250	874.00	652	804	218.50
11	1.250	.150	4.500	876.00	632	833	219.00
12	1.400	.000	3.250	715.00	586	732	178.55
Total	7.750	.250	31.250	5335.00	4248	4595	1333.75
Average	1.291	.0416	5.208	889.16	708	766	222.29

Remarks.—No. 7 fractured but not broken asunder, highly resinous; Nos 8, 9, 10 and 11 broke a little short; 12 broke with a long splintery fracture.

E = 722360.S = 2334.

Specimens Nos. 7 to 12, with the early layers or growth, were taken at about 3 inches from the pith of a centre plank cut from a log 42 feet in length. (Fig. 32.)

FIG. 32.—'a, b, c.