TOPICS: Proper application of the results of scientific research helpful to mankind. Dietary habits should be brought into conformity with the true needs of the body. The peculiar position of proteid foods emphasized. The evil effects of overeating. What the new dietary standards really involve. The actual amounts of foodstuffs required. Relation of nutritive value to cost of foods. The advantages of simplicity in diet. A sample dietary for a man of 70 kilograms body-weight. A new method of indicating food values. Moderation in the daily dietary leads toward vegetable foods. The experiments of Dr. Neumann. The value of fruits as food. The merits of animal and vegetable proteids considered in relation to the bacterial processes in the intestine. A notable case of simplicity in diet. Intelligent modification of diet to the temporary needs of the body. Diet in summer and winter contrasted. Value of greater protection to the kidneys. Conclusion. INDEX 303 LIST OF ILLUSTRATIONS FACING PAGE Photograph of one of the athletes 190 Photograph of soldiers taken at the close of the experiment 194 Photograph of soldiers taken at the close of the experiment 195 Photograph of Fritz at the close of the experiment 200 Photographs of the dogs experimented with Subject No. 5 August 19, 1905 248 Subject No. 5 November 18, 1905 248 Subject No. 5 April 24, 1906 248 Subject No. 5 June 27, 1906 248 Subject No. 3 August 19, 1905 251 Subject No. 3 November 18, 1905 251 Subject No. 3 April 24, 1906 251 Subject No. 3 June 27, 1906 251 Subject No. 13 January 2, 1906 252 Subject No. 13 February 27,1906 252 Subject No. 13 April 24, 1906 252 Subject No. 13 June 19, 1906 252 Subject No. 15 January 2, 1906 252 Subject No. 15 February 27, 1906 252 Subject No. 15 April 24, 1906 253 Subject No. 15 June 19, 1906 252 Subject No. 20 January 2, 1906 252 Subject No. 20 February 27, 1906 252 Subject No. 20 April 24, 1906 252 Subject No. 20 June 19, 1906 252