“One of the marvels of the normal human body is its wonderful adaptability--the maintenance of its equilibrium under constantly varying conditions. By the regulation and adaptation of the heat functions of the body the bodily temperature is maintained at the normal standard in spite of the changing temperature of the surrounding atmosphere. But when the body is artificially heated continually, as by over-clothing and over-heated rooms, its functions become to some degree dormant, and in consequence the natural bodily resistance is greatly lessened. “The effort of the body to resist cold stimulates and strengthens. One who can resist cold can resist all kinds of disease germs. This has been demonstrated by the success of the ‘cold-air cure’ for a variety of diseases. “The old-time coddling of delicate children, which still further lessened their vitality and weakened their powers of endurance, is now giving place to its opposite. Judicious exposure to cold has been found to be one of the best methods of strengthening weak infants and developing healthy children. At a recent conference of mothers held in Minnesota, they were advised that a snowbank makes one of the best cradles. One mother who had tried this treatment thought that it accounted for the unusual health and strength of the family. “A Milwaukee physician, Dr. John E. Worden, has adopted this strenuous treatment to prepare his babes for the rigors of life, and up to the present his methods have been abundantly justified by their success. His little daughters, Shirley and Jane, aged respectively eight and three years, are two of the firmest and healthiest bits of humanity to whom disease of all kinds is unknown. During the cold weather these children may be seen barefooted and bareheaded, clad only in their cotton garments, thoroughly enjoying a romp in the snowdrifts, and without even a goose-pimple on their skin. “‘We are merely following out health rules,’ said Dr. Worden, speaking of his unique methods of bringing up his children. ‘We are aiming at prevention rather than at cure. We have brought the children up so that they are fearless, and dread neither the ice-cold plunge nor a romp in the snow in their bare feet. The door is always open, and they go out when they like and return when they are ready to do so. We do not force the children to go out in the snow barefooted; they go out of their own free will, and play until they are tired, or their attention is called to something else. [Illustration: A HOPI INDIAN AT ORAIBI SHELLING CORN.] “‘In the summer we send them out into the sun bareheaded and barefooted, with orders to keep out of the shade. On the street cars they are instructed to sit on the sunny side of the car. It is well that they experience something of contrast; therefore, a cold bath is given them daily in the warm weather. In the winter they are allowed to go outdoors to get stimulus from the cold air.