470

VERB

Vegeto-Sulphuric Acid. This is procured by treating ligneous fibrewith sulphuric acid. (Bracconot.)

Venice Turpentine. See Terebinth. Venet.

Velno's Vegetable Syrup, according to Adair, is composed of a solu-tion of corrosive sublimate triturated with honey and mucilage.According to Swediaur it contains volatile alkali. According to Mr.Brodie, it is similar to the following. Take Jij of burdock root,(young and fresh) sliced, §j of dandelion root, 3 j of fresh spearmint,5jss each of senna leaves, coriander-seeds, bruised, and fresh liquoriceroot, and Ojss of water; boil down to Oj, strain, and when cold addftj of refined sugar, boil to a syrup, and add a small portion of thesolution of oxymuriate of mercury. (Paris.)

Veratria, or Veratrina. New. A chemical principle discovered byMM. Pelletier and Caventou, in the Veratrum sabadilla, Ver. com-mune, and Colchicum autumnale. It may be procured by treatingthe seeds of the sabadilla with rectified spirit, evaporating the tinc-ture, treating the residuum with water, filtering the liquor, andprecipitating the veratrine w T ith carbonate of potass. The precipi-tate is then to be washed with water.Soluble in ether, and vegetable acids, and still more so in alcohol.Scarcely soluble in cold, but a little so in boiling water. Insolublein alkalies.Medicinally it is inodorous, but violently (even dangerously) errhine.It is very acrid, but without bitterness. It is powerfully cathartic,and emetic, and may be given in form of pills with mucilage, in dosesof gr. -^ to gr. \, in gout, rheumatism, obstinate constipation, &c. SeeTinct. Veratr., and Ung. Veratr. The acetate is the bestpreparation.Poisonous in larger doses, producing violent emesis, and hypercatharsis.Opium is the best antidote.

Veratri Radix. L. E. P. White Hellebore Root. Helleborus albus.D. It contains veratrine in the form of a gallate, and is a very vio-lent and unmanageable purgative, and errhine, and also emetic. Ithas been given in doses of gr. ij of the powder, in mania, epilepsy,gout, and cutaneous disorders; but the veratrine ought to supersedeit as being more certain. It is also used externally, for itch, &c.See Ung. Veratri.Poisonous, like the last, and also dangerous as an errhine. It is nouncommon trick among the lower classes to mix the powderwith snuff, and in this way hazardous consequences are often pro-duced.Enters into Decoct. Veratri. L. Tinct. Veratri Alb. E. Ung. Veratri. L.

Verbascum Thapsus: Folia. D. Leaves of the Great Mullein, They