CUITTJEB TJMDER GIASS. 



241 



flued walla are all that is needful to inBore the safety of the frnit. 

 In the case of nnheated walls something more is needed — the glass 

 mnst either be covered or some means of warming the atmosphere 

 provided. 



One of the simplest peaoh oases that contains the merits of, a fixed or 

 movable permanent wooden and glass coping as well is that shown in 

 Fig. 53. Common frame lights may readily be used for this purpose 

 and be fixed to a few splines of wood, proceeding from the coping to the 



Pio. 53, 



ground, or a. stud raised 9in. or a foot abf ve it. The lights may be 

 screwed down to these, and a movable board used to fill in the bottom 

 space at night, to be removed by day for ventilation. The Messrs. 

 Messenger and other horticultural builders have improved this rough 

 and cheap case by raising a plinth of brick, slate, or wood at 

 the bottom, and either providing for the sliding of the lights 

 for ventilation, or the raising of a 6in. board between the lights, leaving a 

 clear space from base to summit of the wall, or its movement to either 

 side as required, so as to open on the opposite side to the wind. Such 

 cases answer remarkably well, and are, of course, rather more easily 



