PREVENTION OF WOUNDS 221 



surface. All large roots should be cut square 

 with a saw. 



As to the technique of dressing wounds enough 

 has been said in the chapter on wounds. There 

 is one aspect of the matter, however, which seems 

 to fit better into the present chapter, and that is 

 the systematic treatment of wounds in large 

 grounds, in parks, and in orchards. 



The importance of this work was first brought 



Sections and front view showing the dangerous pocket 

 which forms at the base of a wound, and the way the 

 bark must be cut to drain it 



to the writer's notice a number of years ago, when 

 he was employed as foreman on a large California 

 citrus-fruit ranch. The bark of orange and lemon 

 trees is thin and rather fragile. During the con- 

 stant plowing, cultivating, and harrowing which 

 take place in an orchard under irrigation, the 

 trees, especially the ones at the ends of the rows, 

 are often barked, even by the most careful drivers. 

 Prompt treatment of such a wound will usually 

 result in the growth of new bark over its whole, 



