General therapeutics and materia medica (volume 1): adapted for a medical text book . parts of the EastIndies, and is now commonin Jamaica. (Pereira.)The Edinburgh Collegeconsiders it to be not onlythe extract of the wood ofAcacia catechu ; but of thekernels of Areca catechu,Betel nut tree, Catechupalm ; Sex. Syst. Monce-cia Hexandria ; Nat. ; which inhabitsmost of the Indian conti-nent and islands ; and ofthe leaves of Uncariagambir or Nauclea gam-bir; Sex. Syst. Pentandria Monogynia ; Nat. Ord. Rubiacese,—Cinchonacese, (Lindley,) which is a native of Malacca, Sumatra, Princeof Wale
General therapeutics and materia medica (volume 1): adapted for a medical text book . parts of the EastIndies, and is now commonin Jamaica. (Pereira.)The Edinburgh Collegeconsiders it to be not onlythe extract of the wood ofAcacia catechu ; but of thekernels of Areca catechu,Betel nut tree, Catechupalm ; Sex. Syst. Monce-cia Hexandria ; Nat. ; which inhabitsmost of the Indian conti-nent and islands ; and ofthe leaves of Uncariagambir or Nauclea gam-bir; Sex. Syst. Pentandria Monogynia ; Nat. Ord. Rubiacese,—Cinchonacese, (Lindley,) which is a native of Malacca, Sumatra, Princeof Wales Island, Cochinchina, and other parts of Eastern Asia. Itwould appear, however, that the extract obtained from the two lastsources is rarely, or never, seen in European or American is supposed, also, to be obtained from Butea frondosa or Dhaktree, of the East Indies ; Sex. Syst. Diadelphia Decandria; Nat. The number of catechus described by pharmacologists is least as many as thirteen varieties have been admitted ; but, although. Acacia Stamens. 2. Legume. 120 SPECIAL ASTRINGENTS. these may be of commercial and pharmaceutical interest, they are ofless moment to the therapeutist. They are described at length by someof the best modern pharmacologists. In this country, we are not troubledwith varieties. The drug is procured either directly from Calcutta or from London. Catechu, formerly termed Terra Japonica—as met with in the shops—is in masses of different shapes and sizes; of a rusty brown colourexternally, and internally of a colour varying from a pale reddish to adark liver. It is devoid of smell, and has an astringent bitter which is preferred in this market is of a dark colour, and easilybroken into small angular fragments, with a smooth, glossy surface,. bearing some resemblance to kino. (Wood & Bache.) It is often mixedwith various impurities; and, with the exception of these, is soluble inwate
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