28 THE HOP. 



spiral or revolving motion, with the sun, which winds 

 the vine around its support. Whenever a vine is 

 changed from a perpendicular to a horizontal position, 

 the twist in the vine changes, or reverses, and twists 

 with the sun. The instinct of a hop vine seems to be 

 to follow a perpendicular position, and it cannot be 

 made to follow an angle less than forty five degrees 

 without artificial means. 



FIG. 9. BRANCH OF FEMALE HOPS. 



A hop vine is one of the most ambitious of nature's 

 climbers. It will go to the top of its support, if 20 to 30 

 feet high, and the hops will be on the extreme end, 

 while none will be within 10 to 15 feet of the ground. 

 When a shorter support is used, the arms will hang 

 nearly to the ground, loaded with hops. The vine ex- 



