THE TECHNOLOGIST. 



NOTES ON THE ECONOMIC APPLICATION OF BARKS. 



BY JOHN R. JACKSON. 



(Continued from page 372.) 



Agati grandiflora, Desi". — A common East Indian tree, 20 to 30 feet 

 high. The bark is very hitter and is used as a tonic ; an infusion is also 

 employed in small-pox. 



Piscidia Erythriua, Linn. — The Dogwood of Jamaica, a native ot the 

 West Indies, where it grows to about 30 feet high. The bark is very 

 astringent ; a decoction of it is said to be efficacious in allaying or stop- 

 ping the discharge of ulcers, and is more powerful when united with 

 that of Mangrove bark. A tincture of the bark is strongly narcotic and 

 diaphoretic. This bark is one of the common fish poisons of the 

 country. 



Hymenea Courbaril, Linn. — A lofty spreading tree, sometimes 100 

 feet high, native of the South American forests, but growing also in 

 Jamaica. A decoction of the inner bark is considered an excellent 

 vermifuge. Canoes are made ot the thick bark. 



Acacia ferruginea, D.C. — A tree 20 to 30 feet high, native of the 

 mountainous parts of India, where a decoction of the bark, combined 

 with ginger and other ingredients, is used as an astringent wash for the 

 teeth. The natives distil an intoxicating liquor by steeping the bark in 

 Jaggery. The same may be said of the barks of A. leucojjlrfcea, Willd., 

 and A. myriophylla, Grah., both natives of the East Indies, From the 

 bark of A. odoratissima, Willd., also an East Indian tree, growing 30 or 

 40 feet high, a juice is obtained which " mixed with lime-juice and 

 green curcuma, and boiled in cocoa-nut oil, is given in leprosy externally, 

 as well as applied to inveterate ulcers." 



Adansonia digitata, Linn. — The Baobab, a widely distributed tropical 

 African tree, now introduced into the East and West Indies. It grows 



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