Page:Timber and Timber Trees, Native and Foreign.djvu/293

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Table CXLV.—Red Pine (Canada).
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.
1	1.850	.150	4.500	590.00	536.0	660	147.50
2	1750	.150	4.250	572.00	525.0	654	143.00
3	1.500	.100	3.250	588.0	576.00	612	147.00
4	1.650	.150	5.750	700.0	573.00	727	175.00
5	1.500	.100	5.500	724.00	552.0	787	181.00
6	1.750	.150	4.500	746.00	554.0	808	186.50
Total	10.000	.800	27.750	3920.00	3321.0	4248	980.00
Average	1.666	.133	4.625	653.33	553.5	708	163.33

Remarks.—Nos. 1, 2, and 6 broke with a moderate length of fracture; 3, 4, and 5, rather short.

 

Table CXLVI.
Tensile Experiments.

Number of the specimen.	Dimensions of each piece.			Specific gravity.	Weight the piece broke with.	Direct cohesion on 1 square inch.
	Inches.				lbs.	lbs.
7	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \\\ \\\ \ \end{matrix}}\right.}$	2 × 2 × 30	$\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \\\ \\\ \ \end{matrix}}\right\}\,}$	536	11,200	2,800
8				525	11,200	2,800
9				552	11,200	2,800
10				554	6,832	1,708
11				578	13,300	3,325
12				576	11,200	2,800
Total	...			3321	64,932	16,233
Average.	...			553	10,822	2,705