DYNAMICS 



165 



The two following rations, taken from the same source, may 

 be investigated in a similar manner : 



APPROXIMATE AVERAGE OF TEN TRAMWAY COMPANIES. 



This ration contains a sufficient amount of protein, but the 

 proportion of fine to coarse fodders is too large for the highest 

 economy. If the hay were increased to about 20 Ibs. and 

 the maize reduced to 5 Ibs., the ration would still be satisfac- 

 tory from a theoretical standpoint, and the cost would be 

 considerably reduced. 



ARMY RATIONS FOR CAVALRY HORSES IN CAMP. 



The thermic energy of the coarse fodder corresponds to 

 the maintenance requirements of horses of about 1000 to 

 iioo Ibs. live weight; and the dynamic energy is sufficient 

 for 13-8 million foot-pounds, which may be regarded as a very 

 fair day's work for horses of that size. From the point of 

 view of the conclusions set forth in this chapter, this ration 

 appears to be almost perfectly balanced both as regards 

 efficiency and pecuniary economy. 



