This much seems to me to be clear: tuberculosis is a disease brought about by under-nourishment. It is a disease to which the poor are especially liable; and while this is undoubtedly in part due to bad air, it is also due to bad feeding. And when ignorant people wish to live cheaply, the foods they eat are the sugar and starch foods. I remember in Thoreau's "Walden" he sets forth how he lived for many months upon five or six dollars' worth of food. He does not give the amount of the food by weight, so of course we cannot tell exactly; but he gives the prices he paid, and the leading articles in his diet were flour, rice, corn-meal, molasses, sugar and lard. One is, therefore, perfectly prepared to learn that Thoreau died of consumption. And the same thing, I believe, will happen to a good many enthusiastic vegetarians of my acquaintance. They have given up meat, and they have made up for it by increasing their consumption of bread and crackers, rice and potatoes, and prepared and predigested cereals, which they eat with cream and sugar. Even when they use high proteid food, it is in some form such as beans, which contain a great deal of starch, and in a form which is difficult of digestion. As a result of this, they are thin and anæmic looking--they do not seem to be able to put on flesh by means of intellectual fervor and an optimistic philosophy. The result of my meat-diet experiment has been to convince me yet more firmly that the cooked-vegetable diet is the worst diet in the world for myself. (I am content to phrase it that way, and leave it for others to find out about their own case.) There has been some agitation in vegetarian circles since the report has gone around that I have become a backslider, and have gone back to the flesh-pots. I state the facts here for what they may be worth to others. I shall never call myself a "vegetarian" again--though I shall be a vegetarian the greater part of the time. For it should be noted, of course, that the objections which I have brought against the cooked vegetarian diet do not apply at all to the raw-food diet, which is entirely a different matter. If one lives upon nuts, whole grains boiled or shredded, salad vegetables and fruits, he does not get an excess of either starch or sugar, but a perfectly balanced dietary, every article of which is rich in natural salts--in which the starchy foods, and especially the prepared cereals, are fatally deficient. Such a diet can be followed by any person in normal health, who is leading a physically active life. I have known a number of people, old and young, to start out upon this way of life without any preliminaries, and they have noted a great gain in health and efficiency, and have had no trouble of any sort. This diet is as cheap as the bean and white flour and rice diet of the ordinary "vegetarian," and it is, by all odds, the simplest and most convenient diet in the world.