C. Croavther and a. G. Ruston 



•J()7 



This we can only arrive at in the present instance by indirect means 

 since direct digestion trials with animals could not be carried out. 

 The procedure adopted for our present purpose is that followed by 

 us in a previous paper^. 



The digestible protein, as arrived at in the laboratory, is given in 

 Table IV. The " amides " are assumed to be completely digestible. 

 The sum of digestible "carbohydrates"' and fibre is taken as equal to 

 the total "carbohydrates" (Henneberg and Stohniann's Rule). The 

 "ether extract" is assumed to be one-half digestible. The results 

 are summarised in Table V. 



Table V. Estimated Digestible Constituents of Ha//. 



1911 Crop 



1393 

 1840 

 2287 

 2218 

 2393 

 2400 

 2021 

 1500 

 1.504 

 1449 

 1395 

 1093 

 1101 



1914 Crop 



From the data in Table V we have calculated the "starch 

 equivalents" of each crop, proceeding upon the lines laid down by 



1 Tliis Juu.rn.al, 1912, iv. 305. 



