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at this point; the one is wholly automatic in the restraint and control of appetite; the other leaves the checks chiefly to reason.

The purposes served by our sensations are various, frequently co-existent, and always concurrent. Of this, the special senses, the appetites and the feelings which accompany the active powers, are examples. A large circle of enjoyments are through them added to our physical organism, and a pleasurable life provided for. Immediately connected with this is a second purpose. A direct, physical stimulus is, through these feelings, administered to that nutritive and muscular action on which the well-being of the body depends. Pain abates, pleasure promotes effort. The one exhausts, the other stimulates, and, within certain limits helps to renew the strength by which it is fed.

A third purpose of our sensations is found in the knowledge, otherwise unattainable, which they impart of the states of the body, the conditions and demands of its several organs. They thus become the basis of that reasoning by which we adjust action, food and remedial agents to our real wants; make an intelligent provision, and lay down wise precepts, for our immediate and future well-being. A fourth and somewhat more remote ministration of our sensations is to general knowledge. Through them, we come in contact in a new way with surrounding objects, take cognizance of a different set of qualities, and thus make more complete and perfect our classifications. There is a tendency, in thus making our sensations means of intellectual discrimination, somewhat to abate their force and character as feelings. Of this, we have sufficiently spoken.

The relation of the physical feelings to health and activity is easily seen. Unimpeded activity is pleasurable, but the seat, the source of pleasure, is found in an original conformation of the physical man; as much so, we apprehend,