This explains the increased excretion of the kidneys in cold weather.

These snails are placed upon a gauze-like substance, which, though firm enough to support them undisturbed, permits both their natural excretions, and their exudations under excitement, to filter through readily.

Infusions made from the fresh flowers are gently laxative and aperient; when dry, they are said to promote chiefly the cuticular excretion, and to be particularly serviceable in erysipetalous and eruptive disorders.

It has not been shown that tobacco either hastens or delays the metamorphosis of tissue,that it drains the system by waste, or clogs it by retarding the natural excretions.