Page:Timber and Timber Trees, Native and Foreign.djvu/268

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Table CXXX.
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	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \ \end{matrix}}\right.}$	584	17,920	4,480
8				524	12,320	3,080
9				570	19,600	4,900
10				534	14,980	3,745
Total	...			...	64,820	16,205
Average	...			...	16,205	4,051

 

Table CXXXI.
Vertical or Crushing 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.
11—14	3.250	9.000	16.00	34.875
15, 16	3.125	7.875	—	—
17, 18	3.500	8.250	—	—
19, 20	3.750	8.500	—	—
21, 22	3.250	8.750	—	—
23, 24	3.000	8.250	—	—
Total .	19.875	50.625	—	—
Average	3.312	8.437	16.00	34.875
Do. per in.	3.312	2.109	1.77	2.179