HOW OTHER PEOPLE HAVE SUCCEEDED 17 



temperature of the room vary between too 

 wide limits (20 degrees would be safe, but 

 extreme during the day ; the night tem- 

 perature can be as much as 10 degrees 

 below the day minimum). If at one time 

 the plants are overheated, and the next 

 moment chilled, their growth is stunted 

 and their bloom killed. 



