To make an infusion or decoction of the plant for a confirmed cough, or for chronic bronchitis, pour a pint of boiling water on an ounce of the dried leaves and flowers, and take half a teacupful of it when cold three or four times in the day. The silky down of the seed-heads is used in the Highlands for stuffing pillows, and the presence of coal is said to be indicated by an abundant growth of the herb. Another species, the Butter bur (_Tussilago petasites_), [120] is named from _petasus_, an umbrella, or a broad covering for the head. It produces the largest leaves of any plant in Great Britain, which sometimes measure three feet in breadth. This plant was thought to be of great use in the time of the plague, and thus got the names of Pestilent wort, Plague flower and Bog Rhubarb. Both it, and the Coltsfoot, are specific remedies (H.) for severe and obstinate neuralgia in the small of the back, and the loins, a medicinal tincture being prepared from each herb. COMFREY. The Comfrey of our river banks, and moist watery places, is the _Consound_, or Knit-back, or Bone-set, and Blackwort of country folk; and the old _Symphytum_ of Dioscorides. It has derived these names from the consolidating and vulnerary qualities attributed to the plant, from _confirmo_, to strengthen together, or the French, _comfrie_. This herb is of the Borage tribe, and is conspicuous by its height of from one to two feet, its large rough leaves, which provoke itching when handled, and its drooping white or purple flowers growing on short stalks. Chemically, the most important part of the plant is its "mucilage." This contains tannin, asparagin, sugar, and starch granules. The roots are sweet, sticky, and without any odour. "_Quia tanta proestantia est_," says Pliny, "_ut si carnes duroe coquuntur conglutinet addita; unde nomen!_"--"and the roots be so glutinative that they will solder or glew together meat that is chopt in pieces, seething in a pot, and make it into one lump: the same bruysed, and lay'd in the manner of a plaister, doth heale all fresh and green wounds." These roots are very brittle, and the least bit of them will start growing afresh. [121] The whole plant, beaten to a cataplasm, and applied hot as a poultice, has always been deemed excellent for soothing pain in any tender, inflamed or suppurating part. It was formerly applied to raw indolent ulcers as a glutinous astringent, and most useful vulnerary. Pauli recommended it for broken bones, and externally for wounds of the nerves, tendons, and arteries. More recently surgeons have declared that the powdered root (which, when broken, is white within, and full of a slimy juice), if dissolved in water to a mucilage, is far from contemptible for bleedings, fractures, and luxations, whilst it hastens the callus of bones under repair. Its strong decoction has been found very useful in Germany for tanning leather. The leaves were formerly employed for giving a flavour to cakes and panada.