Page:Timber and Timber Trees, Native and Foreign.djvu/199

---

---

and is used most extensively in that way. It therefore supplements the supply of Honduras, the deliveries of which of late have been scarcely sufficient to meet the growing demands for it.

Table LXXXIX.—Mahogany (Mexican).
Transverse Experiments.

Number of the specimen.	Deflections.			Total weight required to break each piece.	Specific gravity.	Weight reduced to specific gravity 700.	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	1.250	.000	3.500	720.0	790.00	638.00	180.000
2	1.250	.100	4.250	700.0	612.00	801.00	175.000
3	1.000	.050	4.250	920.0	715.00	901.00	230.000
4	1.000	.000	3.650	785.0	665.00	841.00	196.250
5	1.250	.150	3.750	880.0	660.00	933.00	220.000
6	1.000	.050	4.150	690.0	625.00	733.00	172.500
Total	6.750	.350	23.550	4,695.0	4067.00	4847.00	1173.750
Average	1.125	.058	3.925	782.5	677.83	807.83	195.625

Remarks.—Each piece broke short.

Table XC.
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	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \ \end{matrix}}\right.}$	665	15,680	3,920
8				660	15,120	3,780
9				625	10,640	2,660
10				612	10,304	2,576
11				715	16,800	4,200
Total.	...			3277	68,544	17,136
Average	...			655	13,709	3,427