PKOPAGATION. 265 



heat of the bed ; still it' will be necessary to 

 raise the sashes a little on warm days when the 

 sun is out ; they must not be raised too high nor 

 kept up too long just now. In ventilating a hot 

 bed, always raise the top or side opposite the 

 point whence the wind comes. In this way the 

 wind will never blow directly into the frame. 

 As the sun goes down the sashes must be well 

 covered, and the covering removed when the sun 

 is well up in the morning. This is a general 

 rule to be observed every day. 



When the sand becomes warm, single eyes 

 or two-eyed cuttings may be put injprecisely as 

 was directed for the propagating bed ; there is 

 much advantage, however, in hot-beds, in put- 

 ting the eyes in pots, and plunging the pots in 

 the sand. Cold water must never be used. 



The frame will now need considerable care 

 and watching. The same conditions, as nearly 

 as possible, should obtain here as in the propa- 

 gating house. Ventilation must be so adjusted 

 as to preserve a rather low, moist atmosphere 

 above the plants, without wasting the heat of 

 the bed. The sashes must therefore be raised 

 from a mere crack to several inches, according to 

 the state of the weather, and the advanced con- 

 dition of the plants; but the sashes must be 



