NATURE-STUDY LESSONS. 15 



13. Compare the back of the hand with the palm in 

 respect to hairiness. 



14. With a good magnifying lens try to observe the 

 numerous minute pits which are the mouths of the sweat 

 pores. These may be seen in the skin of the palm. 



G. Its Bones. 



15. Feel the back of the broad part of the hand with 

 the fingers of the other hand to discover the nature of 

 the framework. 



16. What forms this framework? 



17. {a) How many bones can you feel in the frame- 



work? 

 (3) Describe their shape. 



(c) How do they compare in number with the 



number of fingers and thumb? 



(d) Compare these five bones as to length. 



(e) Can you feel them on the palm as easily as on 



the back ? If not, why ? 

 (/■) Infer on which side of the hand the bones are 

 nearer the surface and discover the advan- 

 tage in this. 

 D. The Fingers. 



18. Examine the connection of these bones with the 

 bones of the fingers and thumb. 



19. (a) Pick up any small object such as a pin or a 



bead from the desk. 

 (i) Describe the way you do it. 



(c) Now, try to pick up the same object by using 



the fingers without the thumb. 



(d) Place the thumb opposite each finger in turn. 



(e) Discover the advantage of being able to place 



the thumb opposite each finger. 



