The concrete turpentine which is scraped off the trunks of Pinus aus-tralis and Pinus Taeda. Southern States of North America.

Characters. - A softish bright yellow opaque solid, resinous but tough, having the odour of American turpentine.

Preparation.

B.P. Emplastrum Picis.

U.S.P

None.

Use. - Applied externally is a slight stimulant. Contained in pitch-plaster.