The Kafumbo fibre, Asdepias semilunata has proved disappointing 
as a cultural plant. It cannot be grown at a profit Lemon grass 
oil made by the department realised from 2s. 3 d- to 2s. 8d. per pound. 
(Report for 1909-1910). 
[Uganda seems to be going ahead with rubber, cocoa, lemon grass,, 
and cotton.] 
Southern Nigeria exported in 1909, 1,388,009 pounds of rubber, 
valued at £109,075. This was all jungle rubber. There are 
30,000 Para plants in the Eastern province and 10,000 more have 
been sold to individuals. The average price for rubber exported was 
2s. 7d. per lb. The chief produce here is Palm oil and kernals, and 
attempts are being made to improve the strain. Cotton, cocoa and 
maize are also important crop (Report for 1909). 
Trinidad possesses 80,000 trees of Heve, a 600,000 of Castilloa 
and 25,000 of Funtumia. The Heveas grow well and the cultivation 
will be increased. Castilloa does well too, and small quantities of 
rubber have been exported for the past few years. 
Brazil appears to be making some attempts to combat the 
invasion of cultivated rubber mother market. Besides giving pre- 
miums to cultivations, and at least considering the question of 
reducing the export tax, a railway is being constructed from Madeira 
to Mamore to open up the country and not only bringing down 
cheaply the Bolivian rubber supplies, which are very large but to 
induce settlements of workers with up-to-date methods along the rail 
and in the forests where the Heveas are abundant. 
Grenada . Two trees of Hevea Braziliensis fruited in the Botanic 
Gardens of Grenada in 1910 and produced 750 seeds sold at a penny a 
piece, their germination was satisfactory. 
TRIALS WITH GREEN DRESSINGS IN DOMINICA. 
The following account of trials that have been made recently in 
Dominca, has been received from Mr. A. J. Brooks, Officer-in-charge 
at the Agricultural School : — 
At the Agricultural School, the horse bean ( Canavalia ensiformis) 
is generally grown for the purpose of green manuring, as this plant 
has given the best results, of all the plants previously tried at the 
school. 
Seeds of two varieties Crotalaria verrucosa and C. striata were 
recently received from Trinidad, through Dr. H. A. A. Nicholas 
C.M.G., for the purpose of testing their-suitablity for green manuring. 
A plot of land was divided into three equal sections for the. 
trial; the first section was sown with horse beans, the second with 
C. verrucosa, and the third with C. striata . 
