CHAPTER XXVI 



INSECTS AND BIRDS 



Sweet is the breath of morn, her rising sweet 

 With charm of earliest birds. MILTON. 



245. Importance of Studying Insects. It costs the Ameri- 

 can farmer more to feed insects than it does to educate 

 his children, says Webster, an entomologist of note. At 



SPRAYING APPLE TREES. 



least one tenth of the farmer's income goes to support 

 these vandals. Recent estimates put the loss due to 

 insects in the United States at $700,000,000 a year. 



246. Two Classes of Insects. From the standpoint of 

 killing insects by spraying, there are but two classes to be 

 considered. 



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