300 



SOILS AND PLANT LIFE 



vary somewhat with the age, variety and vigor of the plant, 

 and with the locaUty in which it is grown. 



The Grape. — Many methods are used in pruning the 

 grape vine, but only one will be given here : 



Fig. 134. — Peach trees headed back. 



The young \'ine is trained up a two-wire trellis and there 

 encouraged to form a letter T with a second letter T im- 

 mediately above it. The erect stems of the two letters, 

 then, are of wood, usually as old as the vine itself, while 

 the spreading " arms " are of wood of the previous season's 



