. Arboretum et fruticetum Britannicum; or, The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described; with their propagation, culture, management, and uses in the arts, in useful and ornamental plantations, and in landscape-gardening; preceded by a historical and geographical outline of the trees and shrubs of temperate climates throughout the world . the infusion, merely by sublimation. Thesolution also contains a large quantity of tannin, as it gives a very copiousprecipitate with solution of
. Arboretum et fruticetum Britannicum; or, The trees and shrubs of Britain, native and foreign, hardy and half-hardy, pictorially and botanically delineated, and scientifically and popularly described; with their propagation, culture, management, and uses in the arts, in useful and ornamental plantations, and in landscape-gardening; preceded by a historical and geographical outline of the trees and shrubs of temperate climates throughout the world . the infusion, merely by sublimation. Thesolution also contains a large quantity of tannin, as it gives a very copiousprecipitate with solution of gelatine. The proportion of these ingredients in815 grains of solid matter are, according to Sir Humphry Davy, as follows : —130 of tannin, 31 gallic acid, 12 saline and earthy matter, and 12 supposed tobe mucilage and extractive matter. Gall nuts are also very extensively usedin dyeing; and, being the most powerful of vegetable astringents, they are fre-quently used with great effect in medicine, both externally and internally, inthe form of powders, infusions, tinctures, or ointments; as in long protractedand obstinate diarrhoeas, intestinal haemorrhages, and intermittents; and,when judiciously combined with tonics and aromatics, have been found caution is, however, required in administering so powerful a medicine;and the dose should not exceed 10 grains or a scruple three times a day. An CHAP. CV. corylace-s;. quercus. 1931. infusion, made with 2 drachms of bruised galls to 12 ounces of boiling water,ma} be used as an injection ; and, in conjunction with a small portion of spiritsof wine, forms a good gargle for relaxation of the uvula. (^Stephenson andChurchiWs Medical Botany, vol. iv. pi, r>>. 152.) M. Ilobiquet (as quoted in the AthencEum {or A[tT\\ 15. 1837) has been .^ making various experiments on the tan- , j> nin and gallic acid contained in gallnuts. One of the most remarkable re-sults obtained by him is, a knowledgeof the great difference of
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectplants, bookyear1854
