The inner bark of Ulmus fulva.

Characters. - In flat pieces, varying in length and width, about one-eighth of an inch (3 millimetres) thick; tough, pale brownish-white, the inner surface finely ridged; fracture fibrous and mealy; the transverse section delicately checkered; odour slight, peculiar; taste mucilaginous, insipid.

Preparation.

u.s.p.

Dose.

Mucilago Ulmi (slippery elm 6, boiling water 100; macerate for two hours and strain)..................................................................................

Ad libitum.

Uses. - Elm bark is used as a demulcent, slight astringent and tonic, and in the treatment of skin diseases.