1 Aprit, 1899.] QUEENSLAND AGRICULTURAL JOURNAL. 319° 
RUBBER FROM YEAR-OLD TREES. 
Tue most interesting point under discussion in relation to rubber-planting in 
the British West Indies is a series of experiments now being carried on in 
London and Trinidad, by which it is proposed to secure rubber from year-old 
trees of the Custilloa elastica. It has been found that seeds sown broad-cast 
over a prepared field will yield an abandant crop of young trees, which at 
about a year old can be cut and sent to a factory where, with ordinary 
machinery operating a simple process, 8 per cent. of fine rubber can be ex- 
tracted from the young shoots. ‘This can be done in the laboratory. It is 
claimed that the process is a simple one, that but: little machinery is necessary, 
and that in future the world’s rubber supply will be secured from an annual 
crop of young trees sown on cultivated estates, and not from remote forests as 
at present. A series of experiments has shown that the young tree contains 
about 8 per cent. of rubber, which would at present prices return an estimated 
profit of 200 dollars to 400 dollars per acre. The extraction of rubber from 
young shoots has been accomplished chemically in the laboratory, but whether 
it can be applied to the economic production of rubber on a large scale 
remains to be seen. : -- 
A SIMPLE WAY TO MAKE ATTAR OF ROSES. 
Trg delicious and valuable scent consists of the oil contained in the leaves of 
the flowers of roses. We learn from Planting Opinion that a Madras firm is 
about to plant an acre or two of Wynaad land with roses with a view to the 
manufacture of attar. 1t will be interesting to learn: what process of pre- 
paration is to be adopted, and to follow the progress of the enterprise. ‘There 
should be a profitable future for it, ifit is conducted prudently and energetically, 
for the Indian demand must be very large, apart from the demand for export. 
The following is a recipe for making attar of roses, as it was prepared in 
India over 100 years ago. ‘There are more modern methods, however :—Take a 
yery large glazed earthen or stone jar, or alarge clean wooden cask ; fill it with 
the leaves of the flowers of roses, very well picked, and freed from all seeds 
and stalks ; pour on them as much pure spring water as will cover them, and 
set the vessel in the sun in the morning at sunrise, and let it stand till the 
evening, then take it into the house for the night ; expose itin this manner for 
6 or 7 successive days, and at the end of the third or fourth day a number of 
particles, of a fine yellow oily matter, will float on the surface, which in 2 
or 8 days more will gather into a scum, which is the attar of roses. ‘This is 
taisen up by some cotton, tied to the end of a piece of stick, and squeezed with 
the finger and thumb into a small phial, which is immediately well stopped ; 
and this is repeated for some successive evenings, or while any of this fine 
essential oil rises to the surface of the water. 
A CURE FOR LUMPY JAW. 
Hoard’s Dairyman has the following remedy for the disease known as 
“Jumpy jaw” by John Judson, San Diego, California. We give it for what it is 
worth, as it is generally believed that there has been no remedy discovered as 
yet for this trouble :— . 
T see in queries in veterinary department, one concerning lumpy daw from 
J. B. and Sons, Ransom, Michigan, and in answer the veterinary surgeon 
says, ‘“‘ No one who understands the true nature of actinomycosis will pretend 
to give a remedy.” 
Now, I will give my experience for what it is worth. Two years ago I 
had a very fine two-year-old Jersey heifer attacked with lumpy jaw. Having 
read in the veterinary department that there was no remedy for the disease, I let 
her go until the lump got so large and the heifer so poor that I killed her and 
put her out of her misery. But learning later that the disease had been cured 
by spirits of ammonia, I determined, if*f ever had another case, I would give 
ee 
