Page:Timber and Timber Trees, Native and Foreign.djvu/350

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Table CLXX.

Showing the woods which have been experimented upon, arranged in numerical order of transverse strength; calculated from the formula ${\frac {lw}{4ad^{2}}}=S$; the weight per cubic foot; the comparative transverse strength, English Oak being 1.000 the elasticity per formula ${\frac {l^{3}w}{16ad^{3}\delta }}=E$ ; and the comparative elasticity, English Oak being =1.000 Abstracted from the tables accompanying the description of the various kinds.

Name of the Wood.	Numerical order of transverse strength.	Weight per cubic foot.	Strength per formula. ${\frac {lw}{4ad^{2}}}$	Comparative transverse strength, English Oak being = 1.000	Deflection at the crisis of breaking in inches.	Elasticity per forumla, ${\frac {l^{3}w}{16ad^{3}\delta }}$	Comparative elasticity English Oak being=1.000
Kranji	01	64.31	3892	1.838	4.040	1,504910	3.484
Iorn-Bark	02	71.82	3498	1.644	4.940	466570	1.051
Greenheart	03	71.82	3498	1.652	4.625	436880	.982
Mora	04	67.94	3481	1.644	4.940	466570	1.051
Sabicu	05	57.31	3393	1.602	3.766	972350	2.186
Pyengadu	06	73.50	3342	1.578	4.250	1,031940	2.320
Pingow	07	46.25	3316	1.566	3.186	1,259690	2.832
Moalvé	08	63.31	3264	1.541	5.166	1,463000	3.290
Kapor	09	59.75	3108	1.468	3.766	1,463000	3.2390
African	10	62.06	2909	1.374	5.142	410430	3.290
Tewart	11	73.06	2701	1.276	4.750	776990	1.747
Chow	12	69.75	2559	1.208	2.833	1,013836	2.280
Elm, Canada	13	46.75	2415	1.141	8.790	618550	1.391
Pine, Pitch	14	39.37	2348	1.109	...	755240	1.700
Teak, Moulmein	15	49.47	2303	1.088	5.930	530970	1.193
Fir, Dantzic	16	36.37	2301	1.087	5.142	579190	1.302
Kari, Australia	17	61.31	2264	1.069	6.060	930950	2.093
Ash, English	18	46.00	2263	1.069	8.625	573100	1.289