124 CULTURE OF THE GRAPE. 



then increase as rapidly as the height. As each vine will 

 require a post, the cost will generally be about the same 

 as a trellis, with fewer posts, and wire for the spaces. If 

 two-inch poles are used, the first cost will be less; but 

 these will last only a few years. Many good cultivators 

 are adopting this cork-screw system, if it may be so 

 termed, as a very easy, simple, and economical way, hav- 

 ing the advantage of making each vine independent, and 

 accessible on all sides, and securing a good circulation of 

 light and air. But there are objections to it, as we have 

 seen; and it is believed that other systems are superior. 



Fig. 23. 



A method adopted in France more than a century ago, 

 in the village of Thomery, and since that time brought 

 into extensive use, more especially for the culture of table- 

 fruit, has been brought into special notice in this country 

 within a few years. It consists in the training of two 

 horizontal arms in opposite directions upon a wall or trel- 



