ON ASPARAGUS. 223 



BUILD a pit thirty or forty feet long, 

 fix feet broad (inward dimenfions) and 

 three feet high. Before the flues are be- 

 gim the foundations moiild be laid two 

 feet four inches broad; that is, eight 

 inches for the flue, four inches for its in- 

 fide fupport, and fixteen inches putdde 

 wall, which may be built either of ftone 

 or brick, as moft convenient; but the 

 fupport and cover of the flue mufr. be 

 brick. 



WHEN the wall is three feet high aU 

 round, begin the flue, which fhould be 

 two feet deep ; and after it is covered 

 <moiild j have fix inches of ftonc or brick 

 built over it before the capingk laid on. 



IF the ground this pit (lands on be clay, 

 there mould be a foot of loofe (loaes 

 broken imall, fpread all over the bottom, 

 and on- that a foot of brufh-wood, cut 

 fmall, and a drain through the wall at the 

 bottom-, to carry oft" the wet ; but if it is- 

 land, gravel, or rock, two feet of brufh- 

 wood will be fufficient without a drairt. 



