The Gardener's New Director. 139 



over the glaffes a taipawlin or thin board covers, where 

 you fliculii have the thermometer regulated by Mr. 

 Miller^i of Cbelfea. The fram.e of the lall: conftruSion 

 I would recommend, as they ferve both winter and fum- 

 mer ufe ; And it is very necefTary to have thefe frames 



at 



walks quite round the tan-bed may be funk, a foot or 

 eighteen mches below the top of the bed ; which will 

 admit of the ftove being built fo much lower; for if 

 there is height for a perfon to walk under the glafi'es, it 

 will be as much as is required ; bwt as tne flues, when 

 returned four times againft the back-wall, will nfe near 

 feven feet, fo the bottom of the lower flue fhould be on 

 the fame level with the walk, to admit room enough for 

 the whole under the root. Over the upright giaflls 

 there muffc be a range of lloping glaflesj w^hich niuft 

 run to join the roof; which fhould come fo far from the 

 back-wall, as to cover the flues, and the walk behind 

 the tan-pit : for if the floping glafles are of length fuf- 

 ficient to reach nearly over the bed, the plants uill re- 

 quire no more light ; therefore thefe glafies fhould not be 

 longer than is abfolutely neceflary, which will render 

 them more manageable ; but the annexed plan will ren- 

 der this more intelligible than any written defcnptioa 

 can do. 



The other fort of fl:ove, which is defigncd for raifing 

 of young plants, until they are of a proper fixe to pro- 

 duce fruit, need notj^e built fo high as the former; there- 

 fore there will not be wantmg any upright glafTcs in the 

 front; but the frames may be made in one (lope, as in 

 the annexed plan : indeed, of late years^ many perfons 

 have made tan-beds, with two flues running through 

 the back-wall, to warm the air in wir ter ; and thefe 

 beds have been covered with glafl'e.s, made in the fame 

 manner as Lhofe for common hot-beds, hut larger ; tliefe 

 were contrived to lave expence, aid in many cales have 

 anfwered the intention, hut to thefe there are feveral ob- 

 jections. I. That of having no palVage into them ; fo 

 that the glafles mull: be taken ofl", when the plants want 

 water, l^c 2. The damps very oltcn rile in the winter 



fell foil. 



