The Gardener's New Director. 359 



Dire^ions for the Conjiru^ion of a double glazed Frame, for 

 the raifing of tender Plants, and the Manner of preparing 

 the Bark Bed kept in it ; of ivbicb an engraved Reprefen- 

 tation is given, for the readier Conception of its Form. 



ABOUT the middle of March you are to provide 

 yourfelf with tan, which mud: be fird laid in an 

 lieap to drain; as it would not ferment or heat fo well, 

 or fo equally as it would, when fome ot the moifture is 

 drained off; and for this purpofe I would make choice 

 of the middling ground bark, as the heat of the largefl 

 is too violent, and that of the fmalleft evaporates too foon 

 for the purpofe of raifing Annuals. As foon as you per- 

 ceive the bark to begin to heat, lay it in your pit, which, 

 in wet ground, fbould be half a foot below the furtace 

 of the earth, and in dry ground two; the pit being firll: 

 inclofed with bri<:k, and paved at bottom, to prevent 

 the earth from mixing with the tan : The breadth of 

 t], is bed fliould not exceed fix feet; the length as you 

 pleafe, but not lefs than twenty. The frame I ufed for 

 this purpofe, was of the following dimenfions. 



Upon the wall, which is to be one foot above the fur- 

 face, you {houM raife a fquare wooden frame, four feet in . 

 height. In this fquare frame fafhes are to be placed in 

 manner of window lights, which occafionally move up 

 and down; over thefe other fafhss are to Aide in grooves 

 from front to rere, meeting in the centre at top, running 

 under a board which projects on each fide, to carry the 

 rain on the glafs, to prevent its del'cending where the 

 fafhes meet; this board comes from the piece of timber 

 that divides the flopes to the fouth from thofe to the 

 north. The occafion of having (loping as well as upright 

 fafhes to the north is, t.hat in Summer the frame migh: 

 have all the air poflible (when the li^ht may be Xi-.^n a- 

 u'ay) and in winter, the cold by them would be fufficiently 

 excluded, to protect fuch plants as required no more thap 



B b 2 com- 



