96 



FRUIT CULTURE UNDER GLASS. 



top outwards. . Fig. 8 represents this method of both 

 elevating and ventilating. The roof can, in this case, 

 be constructed of sashes in one length, and be fixed. 



Fio. 8. 

 An overhanging coping to the back provides for wet- 

 weather ventilation, by allowing the sash to open 

 outward to a certain extent without letting wet in. 

 Of course, this method of ventilation is not to be 

 recommended for early forcing, as the opening is 

 to the north ; but for summer vineries it answers 

 admirably. 



WEIGHT OF CROP, THINNING, DISBUDDING, ETC. 



Cropping vines too heavily is a prevailing error in 

 grape-growing. Presuming that the rafter is, say, 24 



