5274' THE FORCING GARDEN. 



cherries, or all of these, might be planted in the 

 border. The flues might also be occupied as above 

 hinted, with strawberries, &c. 



3. Of the Grape- House. 



A grape-house for early forcing, to be command- 

 ed by one furnace, should not much exceed thirty 

 feet in length. If it were forty or forty-five feet 

 long, it would require tw^o furnaces to be placed, 

 and the flues to run, as described below. The 

 width of the house may be ten or eleven feet, and 

 the height thirteen or fourteen ; the front, includ- 

 ing parapet and glass, not exceeding four feet in 

 height. But, if the roof were made to rest on the 

 parapet, without having any upright glass, and if 

 the parapet were about eighteen inches high, it 

 would have a better pitch, and there would be a 

 longer run for the vines. 



The front flue should be two feet clear of the 

 parapet, should return in the middle of the border, 

 and double by the back-wall, being separated from 

 it by a three-inch cavity, that is, in the case of there 

 being but one furnace for the house. But if the 

 house be much above thirty feet in length, and re- 

 quire two furnaces, one should be placed at each 

 end, in the shed behind, and the power of both 

 should be brought to the font, the flue of the one 

 to be placed within two feet of the parapet, and of 

 the other close behind the first, being separated hy 

 a two-inch cavity only, and both to stand on a com- 

 mon llmndation. The one may return in the 

 middle of the house, and the oiher hj the back 



