174 OPEN AIR GKAPE CULTURE. 



prepared extensive tables, giving the distance to 

 which shadows will be thrown by trellises of various 

 heights, at different seasons of the year, and in dif- 

 ferent latitudes ; but omit them for the above rea- 

 sons. 



The only limit which we would set to the height of 

 a trellis, would be our ability to prune the vines and 

 gather the fruit, with the aid of a light stool. Lad- 

 ders are too unwieldy and involve too much labor, 

 except for a few vines. 



