338 RAIN. 



A. Because it contains a compound 

 of hydrogen and nitrogen (called ammo- 

 nia), which is a very excellent food for 

 young plants. 



Q. Why -is NOVEMBER made ly God to be a 



RAINY MONTH? 



A. Because rain hastens the putre- 

 faction of the fallen leaves by causing 

 fermentation. 



Q. Why does RAIN PURIFY the AIR ? 



A. 1st Because it beats down the 

 noxious exhalations collected in the air, 

 and dissolves them : 



2ndly It mixes the air of the upper 

 regions with that of the lower regions : 

 and 



3rdly It washes the earth, and sets in 

 motion the stagnant sewers and ditches. 



Q. Why are MOUNTAINOUS countries more 

 RAINY than flat ones ? 



A. The air (striking against the side 

 of the mountains) iscarried up the inclined 

 plane, and brought in contact with the 

 cold air of the higher regions, by which 

 it is condensed, and its vapour squeezed 

 out. 



