Green Manures And Manuring in the Tropics Including An Account of the Economic

Cover Green Manures And Manuring in the Tropics Including An Account of the Economic
Green Manures And Manuring in the Tropics Including An Account of the Economic
P De Sornay
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1901 ...
1902 ...
1903 •• 1904 ... 1905 Production varies according to the climatic conditions. The gum which occurs in the Egyptian Sudan also seems to be derived from the Acacia Senegal.
Acacia Catechu. — This acacia is a native of the East Indies and inhabits Coromandel. The species is better known for its product, the catechu or cutch of commerce, which is used in tanning, but the tree also exudes a gum which often appears as dark brown tears, about I in. In diameter. It has a sweet flavour
..., is soluble in water, forms a consistent, dark brown mucilage, and is not precipitated by lead acetate. It is gelatinized by basic acetate of lead, ferrous chloride, and borax; it reduces Fehling's solution.
This gum is used to adulterate gum arable.
It is exported from the Malabar coast and from Tuticorin.
Acacia Sundra. — The gum from this acacia is similar to that of Acacia Catechu.
Acacia Suma. — This species is often confounded with Acacia Sundra, the characters of both being identical.


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