This does not begin to complete the list of those to whom the author owes a debt of especial gratitude. The argus-eyed vigilance of the collectors and doctors of world-news, who mould public opinion in a great measure, has brought to the cause of dietetic reform established upon an æsthetic basis their kindly assistance, but, as usual, they prefer to remain _incog._ In this seclusion, however, Ralph D. Blumenfeld, Esquire, of London, and Roswell Martin Field, Esquire, of Chicago, cannot be included; neither can Charles Jay Taylor, the originator of the Taylor-Maid girl. James P. Reilly, Esquire, of New York, has lightened the labours of the investigator, and has strengthened his arm in many ways; as have also Messrs. B. F. Stevens and Brown, of London, not alone as most efficient agents, but as friends interested in the cause in hand. In the various books of the series opportunity has occurred to express appreciation of many sympathetic friendships, and in heart and memory they hold perpetual carnival. To Major Thomas E. Davis, of the _New Orleans Picayune_, is due more than mere expression of gratitude for excellent editorials on our subject; and across the ocean, Sir Thomas Barlow, the private physician of King Edward VII, Dr. Leonard Huxley, Prof. Alfred Marshall, of Cambridge University, and Reginald Barratt, Esquire, of London, have been most sympathetic and assistful. On both sides of the waters, William Dana Orcutt, Esquire, of The University Press, Cambridge, Massachusetts, and Frederick A. Stokes, Esquire, of New York, have added friendship for the cause to much appreciated practical assistance. These and many others are preferred-creditors of gratitude, in addition to those whose mention is embodied elsewhere in the various books of the "Series." As attempted to be shown in the "A.B.-Z.," under the caption "Bunching Hits and Personal Umpiring," this study of menticulture from the basis of economic and epicurean nutrition, in connection with a purified exterior and interior environment, is "team-work," as in football, cricket, or base-ball, and a laudable enthusiasm is an important feature of the game; hence, to conclude, this especial book, being a personal confession, relaxation, effusion, expansion, as it were, of the practical benefits of economic body nutrition and _menti-nutrition_, it seems the appropriate place to offer personal tribute outside and inside the intimate family relations, as freely as menticultural impulse may suggest. HORACE FLETCHER. PREFACE TO 1906 EDITIONS Since the former introductions were written much success has been attained in further advancing the reforms advocated in the _A. B. C. Life Series_. Professor Chittenden has published his report on the Yale experiments in book form in both America[1] and England,[2] and his results have been accepted in scientific circles the world over as authoritatively conclusive.