GENERAL FORCING HOUSE. 215 



stances, and the dimensions arranged and guided 

 by the judgment of those who have the manage- 

 ment. Some prefer building the house without 

 upright glasses in front, the top glasses reaching 

 from the top of the back wall down to a low wall 

 in front, with a plate of wood fixed thereon ; but 

 the front being formed of upright moveable 

 sashes on a wall one or two feet high, is cer- 

 tainly the most eligible plan, both for appearance 

 and the convenience of head room and other pur- 

 poses within. If intended to be heated by fire 

 with flues, refer to paragraph the first, where 

 full directions will be found, suitable for heating 

 a house of this description, but if by hot water 

 or steam, refer to paragraph the thirteenth. 



When the house is built of considerable length, 

 it may be divided by glass partitions, in which 

 some part or parts may, if preferred, have a bark 

 pit erected, embracing the advantage both of 

 the bark bed heat (and its uses for plunging in, 

 &c.) and that of fire or hot water. Other por- 

 tions of the house may be forced by fire or hot 

 water heat alone, without bark, which gives a 

 a much greater space for fruit trees and other 



