216 GENERAL FORCING HOUSE. 



purposes, the whole of the bottom of the house 

 being free. 



When a bark bed is erected in a fruit forcing 

 house, an internal border is prepared along the 

 back, and another of sufficient width along the 

 front for planting the trees in. This is a very 

 desirable plan for vines, but where a bark pit is 

 introduced into a general fruit forcing house, it 

 is necessary the house should be of considerable 

 width, to admit of the borders, pit and paths. The 

 bark bed pit may also be built after the directions 

 in paragraph the first, and it must not be for- 

 gotten that where the house is wide, say, from 

 fifteen to twenty feet, it will be necessary to have 

 upright supporters along the middle of the house 

 under each rafter. 



PREPARING BORDERS FOR THE TREES, AND 

 THE DIFFERENT SORTS PROPER FOR FORCING ; 

 INCLUDING GRAPE VINES. 



Par. 28. The borders in the forcing house 

 must be made according as the width of the 

 house will admit,, and also must be guided by the 

 internal arrangements generally, but much de- 



