50 NATURE-STUDY LESSONS. 



The Legs. 



29. (a) Examine a fore leg. 



(3) Of how many parts is it composed ? 



(c) How many toes are there? 



(d) Draw a fore leg. 



3a (a) Examine a hind leg; note the parts of which 

 it is composed ; the number of toes and 

 how they are connected. 



31. Contrast a fore and a hind leg; also a fore and 

 hind foot. 



32. Draw a hind leg. 



The Skin. 



33. Observe the general shape and appearance of the 

 frog. 



34. Where is the neck of the frog ? 



35. (a) Note the color of the upper surface of the head 



and back. 

 (3) Compare the color of the upper and under sur- 

 faces of the body. 



(c) If possible, discover whether the frog can 



change the color of its body. 



(d) Infer the purpose of the color and color- 



markings. 



36. Discover whether the skin is sensitive or not. 



37. Compare the frog with the toad in respect to form, 

 food and habits. 



38. Of what use is the frog ? 



