1612 
ferent climatic and cultural conditions and soil, can 
be determined only by making tests elsewhere, - which 
is strongly recommended. 
The leaves are used as a green manure and as 
cattle feed. An analysis of the leaves made by Dr. A. 
W. K. de Jong, of the , Agricultural Chemical Labora- 
tory, is as follows: 
Fresh leaves Dry leaves 
Albumen 5.3 per cent 26.7 per cent 
(nitrogen 0.87 per cent 4.27 per cent) 
Fat 1.4 per cent 7.0 per cent 
Starch 1.9 per cent 9.6 per cent 
Crude fiber 4.0 per cent 20.1 per cent 
Crude ash 0.9 per cent 4.5 per cent 
Water 80.1 per cent 
Nutritive value 34.4 per cent 
The roots and stems will perhaps be suitable 
for the manufacture of paper, where the transporta- 
tion facilities are favorable. The wood which remains 
after the removal of the fiber is very thin and 
smooth, but it burns well and without smoke and is much 
in demand, by the inland women as firewood. It has.no 
commercial value , but it is very acceptable in regions 
where firewood is scarce. By cultivation one easily 
obtains 50 to 100 piculs (6,666 to 13,333 lbs.) of 
dry sticks without any trouble. 
The seed from an old planting is very plentiful; 
from a planting harvested solely for fiber there is 
perhaps enough seed for a new planting. Whether from 
the seed a profitable by-product can be made has not 
yet been demonstrated. Probably it is a good chicken 
feed. An analysis of the seed follows ' 
Water 12.9 per cent 
Oil 2.98 per cent 
Albumen 23.25 per cent 
(nitrogen 3.72 per cent) 
In the neighborhood of a Crotalaria plantation 
bees multiply rapidly and produce very good honey. 
(Adapted from Journal of the Llnnean s Socie'ty, vol. 
42, p. 346; and Mededeelingen uit den Cultuurtuln No. 
12 , 1918 . ) 
Digitaria iburua. (Poaceae), 51257. Grass. From Kaduna, 
Nigeria, Seeds presented by Mr. P. H. Lamb, director 
of agriculture, Northern Provinces. "'Iburu' is grown 
by the natives of northern Nigeria as a cereal,. The 
grains separate fairly readily from the husks when 
pressure is applied, and the seeds are pure white. 
