AND CONSERVATORY. 54J 



constructed green-house, and in wliich, excepting 

 in the above described house, the plants would en- 

 joy the fullest share of sun and light. 



In cither of these houses, and also in that spoken 

 of below, a sufficient number of the upright and 

 sloping sashes should be made moveable, for the ad- 

 mission and regular circulation of air in the better 

 seasons of the year; and ventilators (see Section I. 

 of the Forcing Garden) should be placed at regular 

 distances all round, for the purpose of airing and 

 ventilating the;n in the winter months, or at times 

 when it may not be safe to open the lights. 



Such a house as either of these, would form a very 

 complete receptacle for a handsome and pretty ex- 

 tensive collection. But lor a full collection, and 

 particularly in order to answer the purposes of pro- 

 pagation, a smaller house, that is, one lower and nar- 

 rower, of whatever length, v.'ouid be necessary, be- 

 sides the above green-house. Such should be con- 

 trived, so as to have the plants quite near to the 

 glass ; being placed on flat, or fiatish stages, an- 

 swerable to their respective sizes ; the flue running 

 under the stage, and having a narrow, sunk alley 

 behind, just wide enough to allow a person to sort 

 and water the plants with freedom. 



A house of this kind should have no upright 

 glasses in front, as the foremost stages should be 

 nearly level with the v»'all-plate, or sole of the raft- 

 ers. The ends should be glazed, hosvever, in order 

 to admit the morning and afternoon sun ; but the 

 back, or north side may be close. It should not ex- 

 ceed nine or ten feet in width ; nor should the back- 



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