40 HARDINESS OF THE TREE. 



this, which fails quicker than the Pewaukee, much 

 tenderer, when pruned up to a high trunk unless 

 artificial protection is given. The former is very 

 sensitive to sun scalding the trunk, while the latter 

 is less so but more liable to injury to its forks 



To sum up: First, latitude does not establish an 

 inflexible law for our guidance in the selection of 

 varieties, neither do the thermal conditions, but 

 both are, or may be, overcome by other more 

 important conditions. Second, as we can only 

 control these conditions in part we should do this 

 to the fullest extent, thus reducing the chances of 

 loss to the minimum. 



