Field-Laborers 65 



And it is returned in an altered state, much finer than 

 before, and enriched, to some extent at least, by what has 

 been added to it, and so is better fitted for the support of 

 plant-life. 



QUESTIONS FOR REVIEW 



1. Describe the habits of the earthworm. 



2. How is the soil enriched by them? 



3. In what parts of the world are they found? 



4. How do ants accomplish what worms cannot? 



5. Describe the habits of the termite. 



6. What remarkable "ant cities" are found in Pennsylvania? 



7. How are these ants equipped for their work? 



8. What does the soil gain from their efforts? 



9. What part does the ant-eater play as one of nature's 

 laborers? 



