I have been so busy with my patients and the new building, getting things organised, that I have not done as much as I ought to in the way of promoting your splendid reform; but I am going at it now in good earnest. I feel it is one of the greatest things in sight, and it fits right in to all the other things I am trying to do. I feel that I owe you continually a great debt for the efforts you have made and the splendid work you are doing, which will accomplish more for the uplifting of humanity than all that Carnegie and Rockefeller are doing with their millions. What they are doing is mainly to perpetuate old errors, while you are bringing out new truth of basic importance, and a kind Providence has certainly inspired you to do this grand work. I thank you for all your good thoughts towards us, and assure you the loving encouragement your letters always contain is very much appreciated, and sometimes it gives us a mental uplift just when we need it. The road we are travelling over is not altogether free from thorns. All your suggestions are gratefully received. I remain, Faithfully yours, J. H. KELLOGG. A. B.-Z. PRIMER EXPLANATION This is a condensed presentment of a subject of basic importance to everyone, supported by numerous appendices of great scientific weight. The special object of such brevity and elementary treatment of the subject is: =1.= To accentuate the facts showing how little we really have to know and do in connection with our sustenance in order to have the NATURAL AUTOMATIC PROCESSES done rightly and healthfully. =2.= To permit busy persons who will take our dictum as gospel and our advice as sound to learn their necessary share in their own nutrition in the least possible time, leaving the less credulous and more curious to study the appendices at leisure and at will. =3.= For some ten years it has been the ambition and the aim of the older and non-professional author to embody the fundamental essentials of human responsibility in self-understanding and self-management in not more than ten pages of coarse print that a child could understand and that mothers and teachers might commit to memory and never forget. This is only a first trial-attempt to fulfil the ambition and the aim; but the appendices show the assembling and concentration of scientific and militant forces which will not allow this subject of primal human interest to remain longer the most neglected of educational departments. SOME PERTINENT QUESTIONS Will the reader not ask himself the following questions? =1.= How much do I know about my own nutrition? =2.= Do I know the particular need and purpose of my last meal and what it is likely to accomplish? =3.= Considering my body as an engine, would I accept myself as a competent engineer on my own examination and confession?