THE THEORY AND PRACTICE OF WORKING PLANS 



45 



or on thin bond paper, blue-prints, or, still better, Van Dyke 

 copies can be used for this provisional division of the area. 

 This provisional map quite suffices until the final working- 



Scale 1:25000 

 -1 — I — I — I — I 



1000 Meters 

 20 Meters contour Interval 



Fig. 2.— Division of a Prussian Forest into Compartments. 

 (After Schilling.) 



plan document is prepared, when the maps may be elaborated 

 as much as is desired. E.g., the age classes can be shaded or 

 colored, the type colored or symbolized, etc. 



