XXV.] 
MAHOGANY. 
177 
Table LXXXVIII. 
Vertical or Crushing Experiments on cubes of— 
Number 
of the 
specimen. 
1 Inch. 
2 Inches. 
3 Inches. 
4 Inches. 
Crushed with 
Crushed with 
Crushed with 
Crushed with 
13—16 
17 — 20 
21 — 24 
25—28 
Tons. 
2-675 
3'ooo 
2-675 
2-875 
Tons. 
II -oo 
11-00 
11-25 
io '75 
Tons. 
2775 
27-00 
26- 875 
27 - 875 
Tons. 
45-000 
45700 
44-875 
45 T 25 
Total . . 
11-225 
44 'OO 
109-500 
180-500 
Average . 
2-806 
II -OO 
27775 
45 -I 25 
Do. per in. 
2-806 
2'75 
3-042 
2-820 
Nos. 29 and 30. 
Crushed with 
the weight of 
One piece, 9'*5 x 9"'5 x I 5 "» 3°7 tons = 3-493 tons per square inch. 
” 9 "‘ 5 x 9 "- 5 x tS", 336 - 8 ,, =3-833 „ „ 
E I= 49255 0 - S = 2105. 
TI-IE MEXICAN MAHOGANY TREE {Swieteflia) 
is the pioduce of Mexico, in Central America, where 
it is very abundant. It is of straight growth and outvies 
every other description of mahogany in its noble dimen¬ 
sions. It yields the timber of commerce in squares of 
15 to 36 inches, by 18 to 30 feet in length. These are, 
however, only the ordinary lengths brought to market, 
the stems being generally cut into short pieces for the 
convenience of getting them down the hatchways of the 
ships, which have frequently to load in a roadstead, 
where it would be unsafe to open a raft-port. 
Some of the trees from the district of Minatitlan 
must be very large, since it is no unusual thing to meet 
with well-squared pieces of this timber, measuring 40 to 
N 
