Turning from the foregoing evidence of direct experiment, 

 indicating the characteristic food requirements for the exer- 

 cise of force, it will be of interest to give a few examples of 

 the rations adopted as the joint result of direct experiment Adopted 

 and large experience. rations. 



At p. 345 the results of some experiments by Grandeau and 

 Leclerc with a horse were given, showing no direct connection 

 between the amount of force exercised and that of nitrogen 

 eliminated in the urine. Their experiments were made at the 

 establishment of the Petites Voitures Company in Paris ; and 

 the following table gives the standard daily ration of the Rations jor 

 horses at the time, the experimentally determined mainten- p£%* in 

 ance ration, and that finally adopted for work : — 



TABLE 83. 



It seems that the system of the establishment was to work 

 the horses alternate days ; and to give less hay, straw, and 

 maize, but more oats and beans, though less total food, on the 

 days of work. The figures in the top line, representing the 

 "Previous" ration, are, in each case, the means of the two 

 days' ration. The " Maintenance Ration, No. 1," was fixed at 

 three-fifths of the "Previous" ration; but, as the animals 

 gained in weight, the "Maintenance Ration, No. 2," which 



