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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Louse

the genus Pediculus. The sexes of lice are distinct. The female is oviparous, producing eggs, popularly called nits. The young are hatched in five or six days, and in 18 these are capable of reproduction. Three species are in certain circumstances on man. The body or clothes louse, Pediculus corporis or vestimentorum; the head or common louse, P. capitis; and the public or crab louse, P. pubis. The first species lives in the folds of the clothing in some elderly and uncleanly people. It has the abdomen three times as broad as the thorax.

Pablite reproduction.

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