268 



Vineyard Culture, 



per acre. To exemplify this, we give the following 

 table : 



The consequence of this change in the manner of 

 planting, will be a slight increase in the annual expense 

 for the cultivation of the ground, since the plow can, in 

 that case, be used only along the larger alleys — that is to 

 say, over two-thirds of the surface of the ground, at least. 



The plants submitted to the mode of pruning shown 

 in Figures 32, 34, and 35, are fastened on two or three 

 horizontal wires, according to the hight to be given to 

 the plants. These wires will be fastened and supported 

 by the contrivance shown in Figure 71. 



When the matting is to be applied to the vines, it 

 will be requisite to place one of the two upper wires four 

 inches lower than the other. That one should be made 

 the lower one, which is nearest the quarter whence 

 blow the prevailing winds of the particular region. 

 Thus, Figure 107, showing a cross-section of a double 

 row of plants, and the prevailing winds blowing as in- 

 dicated at by the arrow at A, the wire, B, and its sup- 

 ports, are placed four inches lower than the wire, C. 

 The effect of this will be that the mats, stretched upon 

 the two wires, will offer less resistance 'to the wind, and 



