Page:Timber and Timber Trees, Native and Foreign.djvu/258

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Table CXXIII.
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	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \ \end{matrix}}\right.}$	534	13,664	3,416
8				639	17,920	4,480
9				639	12,880	3,220
10				656	11,200	2,800
11				512	8,960	2,240
Total	...			3014	64,624	16,156
Average	...			603	12,925	3,231

 

Table CXXIV.
Vertical Experiments on cubes of—

Number of the specimen.	1 Inch.	2 Inches.	3 Inches.	4 Inches.
	Crushed with	Crushed with	Crushed with	Crushed with
	Tons	Tons	Tons	Tons
12—15	3.625	12.875	27.875	47.875
16,17	2.625	12.750	—	—
18,19	3.750	12.500	—	—
20,21	3.250	13.000	—	—
22,23	3.250	12.125	—	—
24,25	2.375	12.875	—	—
Total .	18.875	76.125	—	—
Average	3.146	12.687	27.875	47.875
Do. per in.	3.146	3.172	3.097	2.992