(Levant Wormseed.)

Origin. - The dried unexpanded flower-heads of Artemisia pauciflora Weber, a plant growing in Asia and exclusively collected iu Northern Turkestan.

Description and Properties. - From 1/12-1/8 inch (2-3 Mm.) long, oblong-ovoid, obtuse, smooth, somewhat glossy, grayish-green, after exposure to light brownish-green, consisting of an involucre of about twelve to eighteen closely imbricated, glandular scales with a broad midrib, enclosing four or five rudimentary florets; odor strong, peculiar, somewhat camphoraceous ; taste aromatic and bitter. The drug contains about 2 per cent, of a neutral principle, santonin, to which its anthelmintic properties are due. It also contains about 1 per cent. of an unimportant volatile oil.

Dose. - 10-60 grains (0.6-4.0 Gm.).

1 Drugs marked with an asterisk (*) are considered elsewhere.