Page:Timber and Timber Trees, Native and Foreign.djvu/81

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Table XVII.
Vertical or Crushing Experiments on British Oak, with 4 square inches of base.

Number of the specimen.	Dimensions of the pieces.					Specific gravity.	Crushed with	Do. on the square inch.
	Inches.						Tons.	Tons.
97	2	×	2	×	1	740	13.500	3.375
98	2„		2„		2	740„	13.625	3.406
99	2„		2„		3	740„	13.875	3.469
100	2„		2„		4	740„	14.000	3.500
101	2„		2„		5	740„	15.750	3.937
102	2„		2„		6	740„	14.875	3.719
103	2„		2„		7	740„	15.750	3.687
104	2„		2„		8	740„	14.500	3.625
105	2„		2„		9	740„	15.000	3.750
106	2„		2„		10	740„	slipped	—
107	2„		2„		11	740„	14.750	3.687
108	2„		2„		12	720	13.750	3.437
109	2		2		18	720„	11.000	2.750
110	2„		2„		24	720„	10.500	2.625
111	2„		2„		30	734	9.750	2.437

Note.—Nos. 97 to 107 (inclusive) were cut from one piece of Timber, Nos. 108 to no were cut from another, and No. in from a third piece.

 

Table XVIII.
Vertical or Crushing Experiments on British Oak, with 9 square inches of base.

Number of the specimen.	Dimensions of the pieces.					Specific gravity.	Crushed with	Do. on the square inch.
	Inches.						Tons.	Tons.
112	3	x	3	x	8	912	15.500	1.722
113	3„„		3„		9	981	16.125	1.792
114	3„„		3„		10	960	16.000	1.777
115	3„„		3„		11	943	16.500	1.833
116	3„„		3„		12	928	14.750	1.639
117	3„„		3„		13	901	13.500	1.500
118	3„„		3„		14	891	14.000	1.555
119	3„„		3„		15	883	15.000	1.666
120	3„„		3„		16	900	15.000	1.666
121	3„„		3„		17	768	23.500	2.611
122	3„„		3„		18	789	22.000	2.444

Note.—Nos. 112 to 120 (inclusive) were cut from a piece of Oak timber that had been four years in store—it was not even then well seasoned; Nos. 121 and 122 were of better seasoned timber.