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Preparations and Compositions. Part III.

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Emplastrum saponis. Land. Dub,Soda Plaster.Take ofHard soap, sliced, half a pound ;Lead plaster, three pounds.Mix the soap with the melted plaster, and boil them to £bethickness of a plaster.

Emplastrum saponaceum. Ed.Saponaceous Plaster.Take 6Y

Plaster of semi-vitrified oxide of lead, four parts;Gum plaster, two parts;Soap, sliced, one part.To the plasters, melted together, add the soap; then boil fora little, so as to form a plaster.

These are supposed to be mild discutients,

Unguentum oxidi plumbi albi i viilgo Unguentum al-bum. Ed.Ointment of White Oxide of Lead, formerly White Ointment.Take of

Simple ointment, five parts ;

White oxide of lead, one part.

Unguentum cekusSjE sive subacetatis plumbi. Dub.Ointment of Ceruse, or of Subaeetate of Lead.Take of

Ointment of white wax, one pound ;

Ceruse, in very fine powder, two ounces.Make into an ointment.

This is a cooling desiccative ointment of great use whenapplied to excoriated surfaces.

Unguentum acetitis plumbi ; vulgo Unguentum satuk-

~?n ninum. Ed.

Ointment of Acetate of Lead, formerly Saturnine Ointment.Take of

Simple ointment, twenty parts;Acetite of lead, one part.