30 



THE FORCING GARDEN. 



for the summer, at which time the border and roots of 

 the vines will get all the genial influences of the 

 summer rains aild oxidising influences of the air, 

 which is of some importance, though little is thought 

 about this matter. This is one of the chief causes why 

 vines planted outside and where the ground is acted 

 upon by the full rays of the sun thrive so much better 

 than they do inside. As I have said before, the full 

 influence of the Sun upon the roots- is as essential for 



FIG. 12. SECTION OF LATE VTNEHY, FACING WEST, AT AN ANGLE OF 45. 



[Reference to plan. a, the back wall ; B, the roof ; c. the border protector ; d, the 

 openings along the front to admit air (these consist of my sliding shutters) ; E, 

 the ventilation of same sliding shutters as the front, but larger ; //, the vine 

 border and ground prepared under the house ; G, one flow-and-return hot-water 

 pipe. 



the well-being of the vine as it is for the branches ; in 

 other words the warmth of the sun for the ground 

 where the roots are is absolutely necessary, and when 

 planted inside the house it can never come to them 

 well. I have seen and have before mentioned the good 

 effects of the sun's influence upon the roots of the 

 vine. 



The late vinery should be provided with means of 

 applying heat when it is wanted, for sometimes our 



