42 HOW TO MAKE SCHOOL GARDENS 



kept from mice, they will keep several 

 years. 



Wheat is a grass closely related to 

 barley and rye. It has a dense four- 

 sided spike, and grains longitudinally 

 furrowed on one side, turgid on the other. 

 Some varieties have awns or beards; 

 one being planted in autumn, the other 

 in spring. From it comes the principal 

 breadstuff of the civilized world. A grain 

 in weight was originally derived from a 

 plump grain of wheat. 



Wheat was introduced into China 2,700 

 B. C. 



Oats differ from other grains in mode 

 of flowering, having panicles instead of 

 spikes. Used in human food and much 

 used for horses. Often cut "in the milk" 

 for a fodder crop. 



