CULTURE OF THE GRAPE. 



125 



Us, with fruiting branches tied perpendicularly, in the 

 manner seen in fig. 23. By this position, the distribution 

 of sap is equalized ; there being no marked difference be- 

 tween the growth of branches near the trunk and those 

 at the extremities of the arms. The arms may be ex- 



Fig. 24 ; 



tended to a considerable distance, though they are gener- 

 ally limited to four feet for vineyard-culture. Fig. 23 in- 

 dicates that the arms are kept near the ground, which is 

 regarded as a decided advantage. However, it is often 

 desirable to corer a high, upright wall, or trellis. The 

 Thomery system admits of an easy modification to ac- 

 complish this end. By an examination of fig. 24, it will 

 be seen that there are four tiers of arms, which will re- 

 quire a height of about twenty feet from the ground. It 



