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HOMR NATUnS-STLiDV CoURSE. 



simply areas of darker rock, while the lighter portions are areas of yellow or 

 whitish rock material. The dark portions are of such form that people have 

 imagined them to represent the eyes, nose and mouth of a man's face ; but a far 

 prettier picture is that of a woman's uplifted face in profile. The editor has a 

 personal feeling on this point, for as a child she saw the man's face always and 

 thought it very ugly, and moreover concluded that he chewed tobacco, but after 

 she had been taught to find the face of the lady, the moon was always a beautiful 

 object to her. 



The child finds it difficult to realize that the new moon and the full moon are 

 the same, and he must be made to understand why it seems a crescent when new 

 and a disc when full. I would suggest the following experiment to illustrate this. 

 While it is practically the same given in text books yet the editor has made it a 



Experiment for illustrating the phases of the moon. 



little simpler. Of course, there is a piece of apparatus for the schoolroom which 

 illustrates this beautifully; however, few nature-study teachers have this apparatus 

 at hand. 



An Experiment for Recess. — Darken the room as nuich as possible ; use a lighted 

 lamp or gas jet or electric light for the sun, which is, of course, stationary. Take 

 a large apple to represent the earth and a small one to represent the moon. Thrust 

 a hat pin through the big apple to represent the axis of the earth and also the axis 

 about which the moon revolves. Tie a string about a foot long to the stem of the 

 moon apple and make fast the other end to the hat pin just above the earth apple. 

 Hold the hat pin in one hand and revolve the apple representing the moon slowly 

 with the other hand letting the children see that if they were living on the earth- 

 apple the following things would be true: 



(a) Moving from right to left when the moon is between the earth and the sun 

 it reflects no light. 



(b) Moving a little to the left a crescent appears. 



(c) Moving a quarter around shows the first quarter. 



