The Gardener's Niiw DtRECT^R. 123 



Cs/r-.r's botanical thermometers to the Anana's heat. 

 Of to five or ten degrees above that point, and to 

 keep to the fame, which depeni^s on the right ilrufture 

 cf the fire-place; for which piupo'e I would advile the 



ufe 



nut exceed forty feet, unlcl's there are two fire-places, 

 and in that cale it will he proper to make a partition of 

 glafs in the middle, and to have two tan-pits, that there 

 may be two different degrees of heat for plants from 

 different countries (for the rcafons before given, in the 

 account of dry Troves, ) and were I to erect: a range of 

 Troves, they fhould be all built in one, and only divided 

 with glafs partitions, at leafl the half way toward the 

 front, which \\\\] be of great advantajje to the plants, 

 becaufe they may have the air in each divifion fhitted by 

 Aiding the glaffes of the partitions, ci" by opening the 

 glafs door, which fhould be rriade between each divifion 

 lor the more eafy paflQige from one to the other. 



Thefe (loves fhould be raifed above the level of the 

 ground, in proportion to the drynefs of the place ; for 

 if they are built on a moift fituation, the wh(>!e fliould 

 be pfaced on the top of tie ground, fb that the brick- 

 work in front muft be raiicd three feet above the furface, 

 which is the depth of the bark-bed, whereby none of 

 the bark will be in danger of lying in water ; but, if the 

 foil be dry, the brick- work in front need not be more 

 than one foot above ground, and the pit may be funk 

 two feet below the furface. Upon the top of this brick- 

 work in front niufl be laid the plate of timber, into 

 which the wood-work of the irame is to be mortifed ; 

 this fhould be of found oak, without fap, the dimenfion 

 ten inches wide, and fix deep, and the upright timbers 

 in front mufl: be pUced four teet akinder, or fomewhat 

 more, which is the proportion of the width of the glafs 

 doors or fafhes ; thefe fhould be about fix teet and a 

 half, or fevtn feet long, and placed upright; their di- 

 menfions fhould be nine inches by fix, oi yellow fir; but 

 from the top of thefe fhould be Hoping glaflVs, which 

 fhould reach within three feet of liie back of the ftovc, 

 where there fliould be a ftrung crown piece of timber 



placed. 



