124 OPEN AIE GRAPE CULTURE. 



The shoot a is cut off at the line, as shown, or just 

 above the lowest good bud. Next season, b will 

 appear as shown in Fig. 20, and the same routine as 

 that first described much be again gone over. 



If we should be unable to obtain the shoot a at the 

 time it is wanted (which, however, will not happen 

 once in twenty times), we must leave the old spur 

 and obtain a shoot from the base of last year's fruit- 

 ing cane. 



After a number of years (say six to fen), it may be 

 found advisable to extend the vines. This may be 

 done either by removing every second one, or by 

 raising the trellis. 



In the latter case it will be best, in order to secure 

 an equal distribution of the sap, to lay down two 

 courses of horizontal arms and allow the vertical, or 

 bearing canes, to extend only half-way up the trellis. 



The proper arrangement for this, is shown in Fig. 

 25, where it will be seen that the horizontal arms of 

 every second vine are extended both ways, so as to 

 cover double their usual space. The stem of the 

 centre vine is carried up to the middle of the trellis 

 and arms from it laid down, of the same length as the 



resistance to the lip of the new bark that gradually closes over the 

 wound. If the composition is kept in a well-corked bottle, suffi- 

 ciently wide mouthed \m admit the brush, it will always be ready for 

 use and suited to the want of the moment." — Downing. 



