316 AIR. 



A. A hot room is cooled more quickly 

 by opening the lower sash ; because the 

 cold air can enter more freely by an under 

 current, than by one higher up. 



Q. Why does WIND DRY damp LINEN ? 



A. Because dry wind (like a dry 

 sponge) imbibes the particles of vapour 

 from the surface of the linen, as fast as 

 they are formed. 



Q. Which is the HOTTEST PLACE in a church, 

 chapel, or theatre ? 



A. The gallery. 



Q. Why is the GALLERY of all public places 

 HOTTER than the LOWER parts of the building ? 



A. Because the heated air of the 

 room ascends, and all the cold air (which 

 can enter through the doors and windows) 

 keeps to the floor, till it has become 

 heated. 



Q. Why do PLANTS often grow out of WALLS 

 and TOWERS ? 



A. Because sometimes the wind 

 blows the seed there with the dust; and 

 sometimes birds (flying over) drop the 

 seed which they had formerly eaten. 



