Page:Timber and Timber Trees, Native and Foreign.djvu/113

---

---

Table XXXXI. —Dantzic Oak.
Transverse Experiments.

Number of the specimen.	Deflections.			Total weight required to break each piece.	Specific gravity.	Weight reduced to specific gravity 1000.	Weight required to break 1 square inch.
	With the apparatus weighing 390 lbs.	After the weight was removed.	At the crisis of breaking.
	Inches.	Inch.	Inches.	lbs.			lbs.
1	4.30	.15	5.250	474.0	850	558.00	118.50
2	4.35	.25	5.250	466.0	812	573.00	116.50
3	5.55	.30	6.850	449.0	817	549.00	112.25
4	575	.25	7.000	456.0	768	592.00	114.00
5	5.20	.25	7.850	508.0	897	566.00	127.00
6	4.85	.25	6.550	488.0	872	559.00	122.00
Total	30.00	1.45	38.750	2,841.0	5016	3397.00	710.25
Average	5.00	.24	6.458	473.5	836	566.16	118.37

Remarks.—All the specimens broke rather short.

 

Table XXXIII.
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	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \ \end{matrix}}\right.}$	812	13,444	3,361
8				817	14,276	3,569
9				850	17,920	4,480
10				872	21,840	5,460
Total	...			3351	67,480	16,870
Average	...			838	16,870	4,217