144 EFFECTS OF HEAT. 



A. Because the halo is caused by 

 fine rain falling in the upper regions of 

 the air. The larger the halo the nearer 

 the rain-clouds, and the sooner may rain 

 be expected. 



Q. Why does a BLACK MIST bring WET 

 weather ? 



A. The mist is black, because it is 



overshadowed by dense clouds or masses 



of vapour ; and, therefore, it forebodes 

 wet. 



Q. Why does a WHITE MIST indicate FINE 

 weather ? 



A. The mist is white, because no 

 clouds blacken it with their shadow ; and 

 (as the sky is cloudless) fine weather may 

 be expected. 



Q. Why do we FEEL almost SUFFOCATED in a 

 hot cloudy night ? 



A. Because the heat of the earth 

 (being unable to escape into the upper 

 region of the air, in consequence of the 

 clouds) floats, like a sea of heat, on the 

 surface of the earth. 



Q. Why do ice feel more SPRIGHTLY in a clear 

 briyltt iqht ? 





