126 AMERICAN GRAPE CULTURE. 



of stock. In this matter the vigor and ability 

 of the vines must regulate the rate of progress, 

 according to the directions already given. The 

 vines with longest stock, although later at 

 the beginning, eventually become disposed to 

 the most vigor, and this must be regulated, 

 as before stated, by the quantity of bearing, 

 according to general principles. 



Fig. 71 represents that part of the Thomery 

 system that is the most immediately related 

 to the main wall, which is all that we can con- 

 sider at present, leaving the full exposition 

 of the whole system for another occasion. 



This suite consists of five rows, the first and 

 most important one of which we have just 

 reviewed ; but the first row here differs from 

 that in having only four instead of five tiers 

 of arms, and, consequently, allowing one fifth 

 more for length of cane for a wall of the same 

 height. This should be at least ten feet from 

 the ground to the top of the cap. 



The first trellis stands about twelve inches 

 from the wall, and the vines are planted two 

 feet apart in the rows; this, it will be seen, 

 gives eight feet to be occupied by the arms of 

 each vine, the arms being made a little shorter 

 than the space, so that their ends may not touch. 



