THIRD GRADE FALL WORK 143 



warmth of the soil. A seed lying among coarse chunks of 

 earth would be touched by it at only two or three points, and 

 could, therefore, get little good from conditions present in 

 the soil. 



GRAINS OF WHEAT IN DIFFERENTLY PREPARED SOILS 



If the ground is packed too firmly about the seed, as is 

 sometimes the case in clayey soils, the stem and root may not 

 be able to push their way through it and develop properly. 



What does the farmer do to get the soil in proper condition 

 for the germination and growth of plants ? 



LESSON XVI 

 SEED DISTRIBUTION BY ANIMALS 



As plants cannot move about to distribute and sow their 

 seeds, they must arrange their seeds so as to secure the assist- 

 ance of some agent that can do this work. 



Do animals assist plants in this work except in taking the 

 fruit for food as already described? In what other ways do 

 the plants contrive to get animals to scatter their seeds? 

 Have the pupils collect, in a box, samples of all the seeds 



