PKUSING AND TRAINING. 150 



width to come above the spurs on the north side of the 

 trellis, and at the approach of cold weather put another on 

 the south side, and the space between may be filled with 

 tan-bark, sawdust, sand, or soil, or the narrow space along 

 the top may be covered with any old strips of sacks or 

 similar material. The most that is usually needed is to 

 keep the vine from frequent freezing and thawing. 



The amount of fruit obtained per acre is about the same 

 as with the system of low training with two arms, but it 

 requires double the number of vines in the beginning. 



The same style of trellis is used as for the other systems, 

 and the same amount of pinching of the fruiting canes and 

 stopping of the laterals is required. 



The four systems that have been described are the same 

 in principle, only the details are varied to suit different 

 circumstances, and these details may be varied indefinitely, 

 so long as we do not undermine the foundation upon which 

 the structure is built. 



