732 



Rural School Leaflet. 



ing point which is 32 degrees. If the 

 temperature of the air had been below 

 the freezing point, the vapor would have 

 been changed to ice instead of water. 



Snow is made up of very small pieces 

 of ice, and if the vapor in the air changes 

 or condenses, as it is called, when the air 

 is colder than 32 degrees, it snows ; and 

 i f the change takes place when the air is 

 warmer than 2)2' degrees, it rains. Thus, 

 we see that it is the temperature of the 

 air that causes it to rain in the summer, 

 and snow in the winter. 



I wish you might see a snowflake 

 through a microscope. It is a beautiful 

 sight. The illustrations show three 

 snowflakes greatly enlarged. If you 

 look at the frost on the window through 

 a magnifying glass, you may be able to 

 see some of the beautiful forms into 

 which the moisture in the air crystalizes 

 when it freezes. 



Fig. 51. — Snowflakes enlarged. 



MEMORY SELECTION 

 "The snow had begun in the gloaming. 

 And busily all the night 

 Had been heaping field and highway 



With a silence deep and white. 

 Every pine and fir and hemlock 



Wore ermine too dear for an earl, 

 And the poorest twig on the elm-tree 



Was ridged inch deep with pearl. 

 From sheds new-roofed with Carrara 



Came Chanticleer's muffled crow. 

 The stiff rails softened to swan's down 

 And still fluttered down the snow.'' 



— Lozvell. 



