42 



THE FEEDING OF ANIMALS 



the coarse fodders. The grains with hulls contain much 

 silica, and those like wheat and corn but little. The seeds 

 of the legumes are richer in potash and lime than those 

 of the grasses. The maize kernel is especially poor in 

 lime. 



53. The distribution of mineral compounds in the dif- 

 ferent parts of the plant. Because the farmer separates 

 his crops into grain and straw, and the manufacturer goes 

 farther and divides the grain into parts, thus modifying 

 the character of feeding-stuffs, especially by-products, 

 it is necessary to consider just how the mineral compounds 

 are distributed in the .stalk, leaves, and fruit, especially 

 of the cereal-grain plants. A comparison of the straws 

 and grains shows striking dissimilarities: 



TABLE XIII. PER CENT IN THE DRY MATTER 



The straws contain more mineral matter than the 

 grains. In the straws there is much more potash, lime, 

 and silica than in the grains, while phosphoric acid exists 

 in larger proportions in the latter. 



