DESCRIPTION OF FEEDING-STUFFS 153 



This has been repeatedly shown, and a good ex- 

 ample is furnished by the three crops of meadow 

 grass whose composition was given on page 151. 

 The digestibility trials were with sheep, and the 

 following figures were obtained 



Similar experiments to those with meadow grass 

 have been carried out with red clover. Three 

 portions of a well-grown field of clover were chosen, 

 the first plot cut on 20 May, when the green in- 

 florescences were just visible, the second on 7 June 

 was in full flower, and the third on 20 June when 

 two- thirds of the flower heads had lost their colour. 

 All were well harvested in spite of some rain, 

 and a digestibility trial gave the following figures, 

 which are reckoned on the assumption that the hay 

 in each case contained 16% water.* 



* In these experiments the non-protein nitrogenous substances in 

 the food were not determined, for at that time this group of substances 

 was not thought to be so generally distributed as it is now known 

 to be. 



