The Forests of British Guiana. 179 
feet, and it can be had to square 16 inches. The 
wood is tough and hard, and is suitable for house- 
framing and other work where it will not be exposed 
to the weather. 
PAKOORIE is plentiful on the Itooribisci Creek and 
generally throughout the county of Essequibo ; it 
thrives best on low ground with sandy soil. The aver- 
age height is about 80 feet, but the trunk is very large 
compared with its height ; it can be squared to 36 inches 
free from sap. When mature this is a very durable wood, 
and is used for house-framing and many other purposes. 
The tree produces an edible fruit of the size and colour 
of a large orange, and a yellow sappy gum for which no 
use is known. 
Waibaima is probably a species of Nectandra or 
Oreodaphne. The wood has a strong aromatic scent 
and bitter taste, and is about the best wood in the colony 
for planking vessels. The trees are numerous on the 
Essequibo and Demerara Rivers. Their average height 
is about go feet, and as there is little or no sap, the 
timber can be squared to a large size, 20 to 28 inches. 
For planking and all other ship-building purposes for 
which greenheart is used, this wood is probably superior, 
and deserves to be placed among the first class woods 
at Lloyd's for ship-building. 
KOOROO-BALLI or Trysil is plentiful. The average 
height of the trees in the forest on the upper parts of 
the river is about 60 feet ; on the coast lands and in the 
swamps aback of the estates, where large quantities of 
it are cut for firewood, it does not grow so high ; it 
can be squared 10 inches free of sap, and is a dark 
