VARIOUS FORCING METHODS. 



79 



particular frame belongs to the great Eawson green- 

 house plant near Boston, Mass. The sides are of two 

 inch plank, two feet high, and the sash supports are 

 of 2 X 4 inch joists. The rhubarb is picked moderately 

 tM'O or three times a season, and does not seem to be 



W. W. Rawson's Cold Fkames fob Khcbahb. 



weakened much by the process. The variety is the 

 Linnaeus. The location is at the south side of other 

 buildings, thus securing protection from the cold winds. 

 Such a location is a very important aid to earliness. 

 Where there is no room for the forcing patch south of 

 other buildings, it will pay to erect a board fence for 



