XXIV. | JUBA. 163 
18. Panacoco. This wood is dark in colour, hard, 
heavy, straight, and of good quality, the sap-wood being 
about 154 inch thick. It might be used as a substi- 
tute for other hard wood in architecture, or for general 
purposes. The sample log was in a round state, 17 
inches diameter, and 321% feet in length. 
All the woods, from 2 to 18 inclusive, were readily 
taken by the Parisian and local dealers at Havre for 
cabinet and other purposes, and realised good prices. 
A great many specimens of other woods growing in 
the French colony at Guiana were also sent with the 
foregoing ; but as they were quite small pieces it was 
difficult to judge of their fitness for employment in 
architectural or other works. Probably before long 
some of these may be supplemented by sample logs, 
similar in dimensions to Nos. 2 to 18, and if so, a better 
estimate may be formed of their commercial value. 
THE JUBA TREE (Erythroxylon) 
is found in Havana. Two sample pieces of plank, cut 
from the Juba tree, were sent by the Consul-General in 
Cuba, in 1858, to the Admiralty, with a view to the 
introduction of this wood into the royal dockyards for 
ship-building purposes. 
It was understood they were forwarded at the request 
of Mr. Donald, a gentleman of considerable experience 
in the timber business, who was of opinion that it would 
be found a useful wood. He reported that the tree 
attained the same dimensions as the Sabicu, and that it 
could be supplied in large quantities. It, therefore, 
appeared to be well worth a consideration, as the im- 
portation of Sabicu timber was very limited, and scarcely 
equal to the demand for it. 
The samples referred to, upon examination at Wool- 
