Life is a beautiful possibility, and we must strive to live long and well, in health and happiness. If we would accomplish this we must learn how to live; then live it. The specific object for which this book has been written is the Teaching of Health, so that it may prove a source of strength to the thousands of individuals who may be more or less invalided, as well as a beacon light to those who might run on the shoals of ill-health without due warning. In Teaching Health it contributes to the general fund of knowledge, aiding as well in the betterment and happiness of humanity in the world at large.

In compiling a book of this character, the sources of information which must be consulted are necessarily various. The standard works of Physiology and Chemistry, containing as they do the experiments and knowledge of the hundreds and thousands of scientific investigators throughout the world, are obviously valuable books of consultation. Of the individual scientific experimenters, Mr. Horace Fletcher's work on "Mastication" is a classic, and too well known to require any further comment.

Probably some of the most extensive, elaborate and painstaking experiments made at any Institution in this or any other country, are made at the Battle Creek Sanitarium, over which Dr. J. H. Kellogg has the honor of presiding. The experiments carried on at this Sanitarium in the many phases of Dietetics, are simply monumental.

Scientific and technical terms, which are bound to occur in a work of this kind, have been made as plain as possible.

With these explanations "The Art of Living" is launched upon the world with the hope that it may help, in some measure, to make life beautiful and sublime to those who read it.

D. S. S.