Page:Timber and Timber Trees, Native and Foreign.djvu/157

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Table LVIII.
Tensile Experiments.

Number of the specimen.	Dimensions of each piece.			Specific gravity.	Weight the piece broke with.	Direct cohesion on 1 square in.
	Inches.				lbs.	lbs.
7	$\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \\\ \ \end{matrix}}\right\}\,}$	2 × 2 × 30	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \\\ \ \end{matrix}}\right.}$	745	22,400	5,600
8				742	20,440	5,110
9				757	28,000	7,000
10				748	25,480	6,370
11				740	26,600	6,650
12				753	28,560	7,140
Total	...			4485	151,480	37,870
Average	...			747.5	25,246	6,311

 

Table LIX.
Vertical or Crushing Strain on cubes of 2 inches.

No. 13.	No. 14.	No. 15.	No. 16.	Total.	Average.	Ditto on 1 square inch.
Tons.	Tons.	Tons.	Tons.	Tons.	Tons.
17.125	18.625	18.125	18.750	72.625	18.156	4.539

E = 1,259690.S = 3316.

THE KRANJI, OR RED KRANJI TREE,

of which it is probable there are varieties of some other colour, is likewise found in the island of Borneo; it is a tree of straight growth and noble dimensions, and compares favourably with the Chow; it was imported in 1860–61 with the latter wood, and ultimately sent to Woolwich Dockyard to be employed for naval purposes.

The wood is red in colour, hard, heavy, exceedingly tough, and is one of the strongest with which we are acquainted, every one of the specimens, when tried transversely, taking a very heavy strain, and breaking with an unusually long fracture; the grain is close and somewhat resembles Cuba or Spanish Mahogany, but is very