Page:Timber and Timber Trees, Native and Foreign.djvu/191

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CHAP. XXV.]
MAHOGANY.
171

great beauty; indeed, if worked up for furniture, or used for any ornamental purposes whatever, we cannot fail to admire it. The figured logs, therefore, possess a considerably enhanced value over those of a plainer description, and high, even fabulous prices are often realised for them.

Cuba or Spanish Mahogany is durable, and is employed for a variety of purposes. It has been very advantageously used in the building of ships of war in place of Oak for beams, planking, stanchions, &c.; its strength and rigidity rendering it admirably fitted for these, while, being of rnoderate specific gravity, it was safe to use it either above, at, or below the line of flotation; but in civil architecture it is not much used, on account of the high price it obtains over other woods.

Table LXXXIII. —Mahogany (Cuba, or Spanish).
Transverse Experiments.
Number
of the
specimen.
Dimensions. 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 1.500 .000 3.50 767.00 720 746.00 191.75
2 1.500 .000 3.50 883.00 817 757.00 220.75
3 1.250 .050 3.50 817.00 789 725.00 204.25
4 0.850 .000 3.85 956.00 752 890.00 239.00
5 1150 .050 3.35 883.00 765 809.00 220.75
6 1.000 .050 3.00 831.00 771 763.00 207.75
Total 7.250 .150 2070 5,137.00 4614 4690.00 1,284.2.5
Average 1.208 .025 3.45 856.16 769 781.66 214.04

Remarks.— Nos. 1 and 4 broke with moderate length of fracture, and splintery; 3, 5, and 6—each broke very short.