PLANTS. 



45 



large and perfect as they otherwise would be. In 

 many cases, some are forced out of the race entirely 

 and cease to be. The strongest and first in the 

 field always win. This is one of the main prin- 

 ciples in agriculture, one class of plants being given 

 possession of the soil to the exclusion of others. 

 Corn, potatoes, and like crops are plowed and cul- 



RED CLOVER, TIMOTHY, OATS, ANt> WHEAT. 



tivated after the plants start to grow, so that other 

 plants cannot crowd in to take away a part of the 

 light and food. In other words, cultivated plants 

 do not have to use part of their strength in strug- 

 gling with enemies. They are enabled to use all. of 

 it in growing larger and more perfect. 



