W NATURE-STUDY LESSONS. 



F. Its Neck. 



10. {a) Examine the neck, 



(J>) Infer why it is so soft and flexible, 

 (c) Discover the use of the collar. 



G. Its Wings. 



11. {a) Discover why the outer pair of wings are so 



tough while the inner pair are so dehcate. 

 {b) Describe the wings and show how they are 



fitted to the life of the grasshopper. 

 {c) Compare them with the wings of a butterfly. 



12. Draw a grasshopper : 

 {a) With folded wings. 



{b) With wings spread out for flying. 



13. Compare its wings with those of a cricket and with 

 those of a fly. 



H. Its Bespiration. 



14. What evidences have you that the grasshopper 

 breathes ? 



15. Describe the expansion and contraction of the 

 body. 



16. {a) Using a lens observe the openings along the 



abdomen and thorax in a row on the side. 

 {b) How many of these openings are there ? 

 {c) Show them in the drawings you have made. 

 'd) Infer how insects are readily killed by covering 



them with varnish. 



17. Using the microscope observe the opening on the 

 first abdominal segment. 



The opening is supposed to be the organ of hearing. 



