210 



HOPS. 



posts by wires. Each row of plants corresponds to a longi- 

 tudinal chain, the separate lengths in which are equal to 

 the distances between the plants in the row. The train- 

 ing wires fastened at the bottom to pegs are bent in the 

 form of hooks at the top, and led vertically upwards to the 



Fig. 52. 

 Gathering hook. 



I* _ ■ 1- 



PiG. 53. — Wirth's trestle system. 



head wires, where they hook into the small links by which 

 the lengths are joined together. Picking is rendered very 

 easy, each training wire being readily suspended or removed 

 from the head wire by means of the gathering hook (Fig. 52). 

 The cost of this frame-work amounts to about 5d. to 6d. per 

 plant. 



