6 Wisher — TJie Effect of Diet on Endurance. 



TABLE I. 



B E Lq Lw P R T W Average 



Middle Dec. 11.2 11.1 13.8 12.3 11.3 13.9 14.2 15.9 13 



Middle Jan. 10.4 12.7 14.3 14.3 11.1 14.8 12.2 15.4 13.1 



On the otiier hand, during the second half of the experiment (Mar. 

 28-June 1), wlien tlie force of suggestion was consciously introduced, 

 the reduction of flesh and proteid went on rapidly, as is seen in 

 Table II. The facts, therefore, seem to show that the men followed 

 directions closely, avoiding largely the influence of subconscious sug- 

 gestion and following that of conscious suggestion in e.xact accord- 

 ance with the directions given them. 



Changes in Diet. 



During the first two weeks of the first period when no change of 

 habits was undertaken, the food showed little tendency to change in 

 amount or in kinds. On the other hand, for the remaining eight 

 weeks, during which thorough mastication and instinctive eating 

 wei'e practiced, there was a distinct though gradual tendency toward 

 reduction in the amount of food, in the quantity of proteid, in the 

 quantity of flesh foods, and in the quantity of liquids of all kinds — 

 water, tea, coffee, cocoa, and even soup.s. Exact figures were kept 

 for calories, proteid and flesh foods. These showed that the total 

 calories gradually fell about 10^^, the proteids, 15^, and the flesh 

 foods, 40^, 



In the second period, dui'ing which the force of suggestion to 

 reduce proteid and flesh foods was added, the same effects were 

 noted in a still greater degree. During this period the calories 

 dropped nearh'^ 20^, the proteid over 25^, and the flesh foods about 

 70^. Comparing the diet at the close of the entire five months of 

 the experiment with the diet at its beginning, it was found that the 

 total calories had fallen about 25^, the proteid about 40,^, and the 

 flesh foods over SO;^, or to about one-sixth of their original amount. 

 A part of the reduction, at least of the calories, is ])robably due to 

 the change in season, as the experiment began in cold weather and 

 closed in hot weather. 



These results are shown in the following table : 



