WALLS AND TRELLISES. 



107 



One consisting simply of a piece of plank nailed 

 across the post so as to afford a broad surface to lie 

 against the earth. The other is secured by a brace, 



Fig. 89. 



Fig. 40. 



which rests against a large stone sunk below the sur 

 face. 



The posts having been set in a straight line and 

 reduced to a proper height, the next step will be to 

 nail two strips of wood, one along the top and the 

 other at from 9 to 14 inches from the ground, or just 

 at such a height that the head of the vine-stems 



