General therapeutics and materia medica (volume 1): adapted for a medical text book . flabby ill-conditionedulcers. Like alum, finely powdered bark has been inhaled in cases ofphthisis pulmonalis, and especially in laryngeal phthisis. The dose ofthe powder is from 3ss to 3j ; but it is scarcely ever given in this bark of the white oak is always preferred as an internal remedy,in consequence of that of the black oak seeming to irritate the bowels. DECOCTUI jiUERCUS ALM, DECOCTION OF WHITE OAR BARK. ( contus. 5 j; Jiquce, Oiss; boiled to a pint.) The dose of this to f-


General therapeutics and materia medica (volume 1): adapted for a medical text book . flabby ill-conditionedulcers. Like alum, finely powdered bark has been inhaled in cases ofphthisis pulmonalis, and especially in laryngeal phthisis. The dose ofthe powder is from 3ss to 3j ; but it is scarcely ever given in this bark of the white oak is always preferred as an internal remedy,in consequence of that of the black oak seeming to irritate the bowels. DECOCTUI jiUERCUS ALM, DECOCTION OF WHITE OAR BARK. ( contus. 5 j; Jiquce, Oiss; boiled to a pint.) The dose of this to f-5iv; but it is rarely used except as an injection or lotion. 9. —LOGWOOD. Logwood, Cam-peachy Wood, is the wTood of Hasmatoxylon Campe-chiajium; Sex. Syst. Decandria Monogynia; Nat. Ord. Leguminosae;a tree, which is indigenous in Central America; and grows wild inJamaica and other West India islands. Logwood, as an article employed by dyers, is well known in com-merce. It is imported in billets, the bark and white sap-wood being chipped off, and the inner Fig. Haemaioxylon Style. 2. Legume. wood or duramen sentabroad. This is of a deepred colour, but it becomesdark by exposure to theair, and or a blackishbrown colour. In theshops, it is kept in chips,or rasped into coarse pow-der. It has a peculiar,rather agreeable smell;and a sweetish, astringent,and subsequently bitterishtaste. When chewed, itcolours the saliva colouring matter isextracted by both waterand alcohol, so as to formdeep purple subjected to analy-sis, it has been found to uva imsi. 127 C contain volatile oil; a red crystalline substance of a slightly bitter, acridand astringent taste, called hasmatin or hematoxylin ; a fatty or resinousmatter; a brown substance containing tannin; glutinous matter; aceticacid; woody fibre, and various salts. It is a gentle astringent and tonic; and is prescribed occasionally inchronic diarrhoea and dysentery, and other


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