136 
TIMBER AND TIMBER TREES. [chap. 
THE PINGOW TREE 
is also found in the island of Borneo, where it is said 
to be plentiful. It is of straight growth and good 
dimensions, and yields timber of from 25 to 40 feet in 
length, and n to 18 inches square. 
The wood is of a dark brown colour, hard, heavy, 
tough, rigid, and remarkably strong; it is straight in 
the grain, close in texture, and not difficult to work. 
It is used in Borneo for all the purposes to which the 
Chow is applied, except that, as the tree does not attain 
the same altitude, it will not furnish masts for any but 
the smaller junks. The characteristic properties of the 
Pingow are favourable to its introduction for any 
purpose where great strength is required ; and, of the 
sample logs brought to this country in i860-61 and at 
subsequent dates, the whole were passed either to 
Woolwich Dockyard or to the out-ports, to be employed 
in ship-building. 
Table LVIL—Pingow (Borneo). 
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 
i square 
inch. 
With the 
apparatus 
weighing 
390 lbs. 
After the 
weight 
was 
removed. 
At. 
the crisis 
of 
breaking. 
Inches. 
Inch. 
Inches. 
lbs. 
lbs. 
I 
75 
•05 
3‘5° 
1235 
757 
1631 
308-75 
2 
75 
•05 
3-65 
1223 
753 
1624 
305 75 
3 
•65 
•OO 
4 '25 
1355 
745 
1819 
33875 
4 
•90 
•IO 
375 
1237 
742 
1667 
309-25 
5 
75 
•15 
4'35 
1302 
748 
1740 
325'50 
6 
•85 
•00 
3‘40 
1228 
740 
1660 
307-00 
Total . 
4‘65 
75 
22’90 
7580 
4485 
IOI4I 
1895-00 
Average 
775 
•0583 
3-816 
1263-3 
747'5 
1690 
3I5-83 
Note.—A ll broke short. 
