TINC

447

the dried leaves of hemlock, ^iv of cardamom-seeds, bruised, and ^xvof proof spirit; make a tincture.Medicinally it is given in doses of ^ss to ^j, as a sedative narcotic, infever, cancer, &c. It is a very good form of hemlock.

Tinctura Croci. E. D. Tincture of Saffron. Take 3J of Englishsaffron, bruised, and Jxv of proof spirit; digest for seven days, andfilter through paper. It is only used for its colour; but is slightlystimulant and diaphoretic.

Tinctura Crotonis Olei. New. Tincture of Croton Oil. Take -m_ijof croton oil, and 5J of rectified spirit; digest, and filter. jDo.sc 5SS,as a purgative. (Dr. Nimmo.)

Tinctura Digitalis. L. E. D. P. Tincture of Foxglove. Take Jivof leaves of digitalis, dried, and Oij of proof spirit; digest for 14days, and filter.Medicinally it is given in doses of T^x, cautiously increased to 11^x1.It is one of the best forms of the digitalis, but will probably be soonsuperseded by some preparation of Digitaline.

Tinctura ./Etherea Alcoholica de Muriate Ferri, P. and Pharm.Berlin. Bestucheff's Nervous Tincture. Take any quantity of ironin powder; dissolve it in a q. s. of muriatic acid, mixed with a fourthpart of nitric acid, and evaporate; separate the dried mass, so thatit may deliquesce in the liquor of a deep brown colour; mix theliquor with a double portion of sulphuric ether, by shaking it; sepa-rate the ether thus impregnated with the dissolved iron, and mixwith a double portion of strong rectified spirit; when mixed, putit in oblong glass vessels, well-stopped, and exposed to the rays ofthe sun till it become colourless. Then keep it carefully. The pre-paration loses its colour in the sun, but becomes yellow in theshade.

Tinctura Ferri Ammoniati. L. Tincture of Ammoniated Iron.Take ^iv of ammoniated iron, and Oj of proof spirit. It cannot becalled a tincture with much propriety.Medicinally it has been given in rickets and scrofula, in doses of 5ss to^ij, but it is not a very important preparation. It is also appliedexternally to schirrous tumours.

Tinctura Ferri Muriatis. L. E. Mwialis Ferri Liquor. D. Tinc-ture of Muriate of Iron. Take ftss of subcarbonate of iron, Oj ofmuriatic acid, and Oiij of rectified spirit; add the acid to the sub-carbonate in a glass vessel, and shake it for three days; if there beany dregs, let them subside, then pour off the clear liquor, and addthe spirit to it.Decomposition. The muriatic acid decomposes the subcarbonate of ironwith effervescence, expelling the carbonic acid, and combining with