WAn.] AND CONSERVATORY. .561 



at any time from the middle of February till Oc- 

 tober, on the more tender plants. On myrtles, 

 oranges, and the hardier kinds, if very dirty, it may 

 be done at any time. 



iipard> 



THE GREEN-HOUSE. 



Of tJie Temperature of the Green-House, 



X^iTTLE fire-heat will now be necessary, if the 

 weather be moderate. The days lengthen fast, and 

 if frost be just excluded in the night, it is enough. 

 The sun will keep up a sufficient degree of heat in 

 the day, without the aid of the flues. A small fire 

 made about five or six in the evening, will generally 

 keep the mercury at, or about 40°, till morning j 

 except perhaps in uncommonly bad weather, at 

 which times the operator must be on his guard, and 

 by help of the furnace, must w^ard ofi' danger. 



Of the Admission of Air to the Green-House, 

 Air should now be freely admitted every day by 

 tlip- cashes ; ghnng large portions in sunshine, from 



N n 



