GREENHOUSE 



sections on each side of the roof so arranged 

 that they can be opened for ventilation. There 

 are ventilating appliances now on the market 

 which so add to the ease of management and 

 control of the greenhouse that no one can 

 afford to be without them. By simply turning 

 a crank attached to a rod and connected with a 

 wheel and a set of arms fastened to the sash of 

 the ventilators in the roof, those sections are 

 opened to suit the need of time or season, and 

 a reverse turn of the wheel closes them. The 

 lifting-arms are so connected with the rod that 

 they are held rigidly in any position where you 

 see fit to leave them, consequently there is no 

 possible danger of accident from sudden winds. 

 A similar apparatus makes it an easy matter to 

 open the side ventilators by simply turning a 

 crank. The sash-bars advised for the roof are 

 so constructed that when they are fastened in 

 place, at ridge and eave, it is an easy matter 

 to put the glass where it belongs, and a cap 

 which fits snugly over the shoulder of the bar 

 and fastens by screws holds it firmly in place 

 without brad, tack, or putty. This is a vast 

 improvement over the old method of glazing 

 the roof, and makes it easy to replace broken 



glass. The glass for the roof, let me remark 



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