The Gardener's New Director. 131 



inches; and thofe marked No. 4. two teet in height, 

 afcending gradually with the rife of one foot, to the 

 higheil flues, No. 4. for the better drawing of the fmoke ; 

 3//0, The depth of both the tan-beds mufl be four feet. 



4/0, 



mer, when the fun is high, the rays will not reach above 

 five or fix feet from the glaffes. Befides, the plants, 

 placed toward the back part of the houfe, will not thrive 

 in the fummer feafon, tor want of air, whereas, when 

 there are floping glaffes at the top, which run within 

 four feet of the back of the houfe, thei'e, by being 

 drawn down in hot weather, will let in perpendicular 

 air to all the plants ; and of how much fervice this is to 

 all forts of plants, every one who has had opportunity of 

 obferving the growth of plants' in a flove, will eafily 

 judge; for when plants are placed under cover of a 

 cieling, they always turn towards the air and light, and 

 thereby grow crooked ; and if in order to preferve 

 them ftrait, they are turned every week, they will n,e- 

 verthelcfs grow weak, and look pale and fickly ; for 

 which reafons, I am fure, whoever has made trial of 

 both forts of ftoves, will readily join with me to recom- 

 mend the model .of the bark-ll:ovc for every purpofe. 



As to the farther contrivance of this flove, it will be 

 necelTary to obferve the temper of the place, whether 

 the fituation be dry or wet ; if it be dry, then the Hoor 

 need not be raifed above two feet above the level of 

 the ground, but if it be wet, it will be proper to raife 

 it three feet, efpecially if thefe flues are to be carried 

 under the floor ; for when they are erected clofe upon 

 the furface ot tiie ground, thefe will raife a damp, which 

 will prevent the flues drawing fo well as when they are 

 more elevated. The furnace of this ftove mufl: be placed 

 at one end of the houfe, according to the directions be- 

 fore given. This mud be made according to tlie fuel 

 intended to burn, which, if for coals or wood, may be 

 made according to the common method for coppers, but 

 only much larger, becaufe, as the fire is to be contmucd 

 in the night chiefly, if there is not room to contain a 

 proper quantity of fuel, it will cccafion much trouble. 

 K 2 in 



