126 The Hotbed and Cold-Frame 



tute for double sash, which are not needed, as a rule, 

 very many nights during the winter except in 

 extremely severe climates. 



If a flat sets in a metal receptacle which is an 

 inch or two too large, water may be poured into the 

 receptacle and thus allowed to soak into the earth 

 in the flat without danger of washing up young 

 plants or tiny seed. 



When the sun's rays are too strong for the plants in 

 the hotbed, place a covering of straw or leaves over 

 the glass. This will afford the necessary shade 

 without cutting off all the warmth. A piece of 

 thin green cloth will answer the purpose well if 

 leaves are not available. 



The durable hotbed is the hotbed made of concrete. 

 It costs more to build but if the location selected is 

 to remain the permanent site for the hotbed, it is 

 far wiser to build of concrete than of wood. 



