BIRDS AND INSECTS. 325 



Entomology. 



QUESTIONS. 



1. What relation does zoology bear to agriculture? 



2. Explain how wind, water, birds and insects become agents in 

 cross-fertilization of flowers? 



3. How do insects pollinate flowers? 



4. How does the bee carry pollen, and what purpose does it serve 

 in the hive? 



5. How does the Humble bee affect the clover crop? 



6. How does the honey bee aid the fruit crop? 



7. By what two senses are insects lured to the blossom? 



8. Is the fragrance of the flower adapted to any particular kind 

 of insects? 



9. Explain why some flowers bearing all the organs of fertiliza- 

 tion can not pollinate themselves. 



10. Is there any technical distinction between "pollination" and 

 "fertilization" of the flower? 



11. Is there any evidence to show that flowers adapt themselves to 

 their insect friends? 



12. What relation have you observed between the color of plants 

 and the color of some of their insect guests? 



13. Do flowers ever serve as a protection to insects? How? 



14. If cross-fertilization is the result of natural selection or of the 

 law of the survival of the fittest, what can you say of the importance of 

 insect life in its relation to evolution in the vegetable kingdom? 



15. How could the increase of insects of a certain species result 

 disastrously to agriculture? How has nature provided for a well balanced 

 production to maintain an equilibrium between farm friends and farm 

 foes among plants and animals? 



16. Why must we know the life history of an insect before we can 

 combat it successfully? 



17. With respect to spraying, insects are divided into what two 

 forms? 



Book References for Nature Study. 



INSECTS. 

 IST AND 2ND GRADES. 



1. Fanciful Flower Tales Bigham Little, Brown & Co., 50c. 



2. Stories of Insects Chase March Bros., 25c. 



3. Wings and Stings Doulton Rand-McNally. 



4. Story of Insects Mulcts (Phyllis Books) Page. 



5. Butterflies and Bees Morley Ginn & Co. 



