Hotbeds, Cold Frames and Flats 



If, however, the construction must be along 

 economical lines waste lumber and old window 

 sash may be employed very satisfactorily. Hav- 

 ing dug the pit of the required depth and width 

 and length — three feet if old sash are to be used 

 will be the best width and is desirable 

 anyway as it can be easily reached across and 

 can be placed close to a building and so occupy 

 much less ground than where the usual florist 

 sash is used, a frame consisting of four upright 

 posts two by four inches and six feet long for the 

 two rear posts and five feet long for the front, 

 to give the necessary slant to the frame, should 

 be used ; on these the boards for the sides and ends 

 should be nailed, the end boards sawed to a true 

 slant that the sash may rest evenly upon them ; the 

 frame is then lowered into the pit and the soil 

 leveled off around it and made firm so that no 

 cold air finds entrance. To such a frame the sash 

 may be hinged at the back and notched sticks 

 adjusted to hold it at any desired angle. 



In the permanent cement hotbed the pit is 

 dug as before, then interlined with boards to form 



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