pAny marked change from our accustomed manner of life should begin gradually. For one who, in winter, has never taken any other than a warm or tepid bath, to plunge suddenly and without preparation into a tub of cold water might be attended with serious results, while by gradual stages the same point may be reached with positive advantage to health and comfort.ppThe popular error still prevails that a well equipped gymnasium and costly apparatus are necessary to healthful physical development. It is an important part of the object of this work to show that with little or no outlay for apparatus, and with the expenditure of very little time, both health and vigor may be secured and preserved, and the success and happiness of lifeppbe greatly promoted.ppThe hindrances to a more general adoption of a course of physical training as a means of promoting health and strength are pp1. Ignorance of the advantages to be secured.pp2. Distrust of the efficiency of the methods.pp3. Mistaken notions