2O THE FORCING GARDENER. [fi. 1. 



The pit (fee the plan) is about four feet 

 in the back, and three in front, deeper 

 than the bottom of the flues : which great 

 depth is made on the prefumption that it 

 may be frequently ufed in raifing of pine- 

 apple plants ; but, were it intended for Af- 

 paragus alone, half this depth would be fuf- 

 ficient. 



It is immaterial whether the pit be en- 

 tirely filled with tan or not : I have fre- 

 quently ufed three-fourths ft able-dung, pre- 

 pared in the fame manner as for a hot-bed, 

 with equal fuccefs : but have always found 

 that the dung is more difficult to manage 

 than the tan, being liable to heat violent- 

 ly : befides, from the nature of the build- 



ing, 



the outer wall of the flue is only a brick on bed, it is obvi- 

 ous, that early celery, carrots, lettuce, radifh, cauliflower, 

 &c. &c. fown on a well-prepared border about two feet 

 broad, immediately adjoining the breaft of the pit, would 

 reap infinite advantage from the flue. At the time of 

 any operation within the pit, a broad plank, fupported 

 by bricks, See. would defend the crop' on the border from 

 injury. This hint is not from fpeculation ; I have pra&i- 

 fed it for many years ; and would ferioufly advife every 

 gardener to do fo on all occalions, where it will anfwer. 

 I have always found the plants fo raifed, to be prefer- 

 able to thofe raifed on hot-beds. 



