Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Perianth

the envelope surrounding the reproductive organs in a flower, when the calyx and corolla are not easily colored portion of a lily. discriminated. Example, the petaloid or PERICLES discriminated. Example, the petaloid or dition against Sicyon and Acarnania; colored portion of a lily. extent of about two inches from their commencement of the great vessels, to the origin. It is placed with its apex upcommencement of the great vessels, to the extent of about two inches from their origin. It is placed with its apex upwhich the lungs are inclosed; while its between the pleuræ the serous sacs in which the lungs are inclosed; while its an external fibrous and an internal sedense, fibrous membrane; the serous rous layer. The outer layer is a strong, an external fibrous and an internal serous layer. The outer layer is a strong, dense, fibrous membrane; the serous layer er invests the heart, a closed sac; its inner surface is smooth layer. Like all serous membranes, it is heart, and is then reer. Like all serous membranes, it is a closed sac; its inner surface is smooth and glistening, and secretes a thin fluid which serves to facilitate the natural tutes the disease that is known as perimation of this serous sac which constitutes the disease that is known as pericarditis. layer.

Pericarditis is a disease which occasionally runs a very rapid course, and terminates fatally in 48 hours or less.

In ordinary cases, however, which terminate in apparent recovery, the disease generally begins to yield in a week or 10 remain, the cure appears to be complete in three weeks or less.

The treatment of pericarditis at present in favor is much less active than when bleeding, mercurialization, etc., ent in favor is much less active than were considered necessary. Complete rest in bed, light diet, with opium or other sedatives as required; general med- rest in bed, light diet, with opium or ication suited to the disease with which the pericarditis is associated, local application of poultices or cotton wool, the pericarditis is associated, local apsometimes of leeches or blisters, are the chief measures employed.

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