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Prussian Brown – Psoriasis

Prussian Brown

a color obtained by adding a solution of the yellow prussiate of potash to a solution of sulphate of copper, which throws down a precipitate of deep brown. This, when washed and dried, is equal to madder, and possesses greater permanency .

Prussic Acid

a name given to hydrocyanic acid because it was first obtained from Prussian blue.

Pseudopodia

organs of locomotion and prehension in the lower Protozoa.

Psalter

the Book of Psalms; also a book containing the Psalms separately printed, and with musical accompaniment adapted to each; also specifically, the version of the Psalms in the English Book of Common Prayer. In the Roman ritual, man ritual, the daily office in the Brev- Psalter is the Little Office.

Psaltery

a stringed instrument of music used by the ancient Jews, the form of which is not known. That which is now used is in the form of a trapetruncated at the top, having 13 strings of wire, mounted on two bridges at the sides, and is struck with a plectrum.

Psara

or IPSARA, an island of Greece, in the Grecian Archipelago, 7 miles N. W. of Scio, about 5½ miles in length, and as many in breadth.

Pseudomorph

a mineral which has replaced another, or which appears in crystal forms which are foreign to its original formation.

Pseudonym

a false, feigned, or fictitious name; a pen-name. by the transposition of the distances of impression is thus conveyed to the eye, a globe becoming apparently concave form. and a hollow body bod assuming a convex family of scansorial birds, comprising

Psittacide

the parrot tribe, a tacus is the type. over 300 species, of which the genus Psitbank of the Velikaya, 165 miles S. S. W.

Psoas

in anatomy, two muscles ; the nected with the lumbar vertebræ. In entomology, a genus of beetles allied to Bostrichus. genus of Psoralieæ. P. coryfolia is con-

Psoralea

in botany, the typical sidered by Indian doctors to be stomachic and deobstruent. An extract from it, prepared with oil or ointment, is used externally in leprosy. Camels are fond of P. plicata. scaly tetter. It is often hereditary, and

Psoriasis

a cutaneous disease-the is akin to lepra. ings the word psyche occurs as a person- PSYCHE. In the later Greek writification of the human soul. plied to the process of inquiry into the