During the original experiments in Chicago, and in Dayton, Ohio, the originator was much indebted to James H. Lacey, Esquire, of New Orleans, La., and Cedar Rapids, for helpful suggestions, which his early training as a pharmaceutical chemist rendered him able to give. There are also numerous altruistic, self-sacrificing women, who have been active colleagues of the author in testing the virtues of an economic nutrition, and who have greatly assisted in making the economy an added new pleasure of life, instead of being a restraint or a deprivation. This is accomplished easily by a change of attitude towards the question, and in such reform women must have an important part to play. To their kindly meant, but hygienically unwise, aggressive hospitality, in begging friends to eat and drink more than they want, just to satisfy their own generous impulses, is due much of the milder gluttony that is prevalent. Imposition upon the body of any excess of food or drink is one of the most dangerous and far-reaching of self-abuses; because whatever the body has no need of at the moment must be gotten rid of at the expense of much valuable energy taken away from brain-service. Hence it is that when there is intestinal constipation the energy-reserve is lowered enormously, and even where there is no painful obstruction, the mere passage of waste through some twenty to twenty-five feet of convoluted intestinal canal is a great tax upon available mental and physical power; and this disability is often imposed on innocent men by well-meaning women in the exercise of a too aggressive hospitality. Mention of constipation suggests another reference to one of the specially new features of this discussion, insisted upon by a truly economic and æsthetic nutrition, and herein lifted out of the depths of a morbid prejudice to testify to the necessity of care in the manner of taking food for the maintenance of a respectable self-respect. So firmly rooted is the fallacy that a daily generous defecation is necessary to health that less frequent periodicity is looked upon with alarm, whereas a normally economic nutrition is _proven_ by greater infrequency, accompanied by an entire absence of difficulty in defecating and by escape from the usual putridity due to the necessity of bacterial decomposition.