THE STOCK MAP. 289 



<6) Contour lines, or height curves. 



(7) The system of roads and rides, watercourses and other 



natural lines, with their names. 



(8) The boundaries of working sections, blocks, compart- 



ments and sub-compartments, with their names and 

 numbers. 



c. The Stock Map. 



This has for its principal object to give a picture of the 

 manner in which the area is stocked with wood ; a smaller 

 scale than 4 inches = 1 mile generally suffices for it. The map 

 should contain, apart from the necessary details, a representa- 

 tion of the existing species, sylvicultural systems and distribu- 

 tion of the age classes. This can be done in a variety of ways, 

 as for instance in the following : 



In high 'forest the principal species are shown by different 

 washes ; the age classes by different shades of the same wash, 

 the 3 r oungest being given the lightest, and the oldest the 

 darkest shade ; the regeneration class receives some distin- 

 guishing mark. 



Mixed woods may receive a separate wash, or they may be 

 distinguished by the addition of small trees or marks of various 

 colours. 



Coppice woods may receive a separate wash, if shown on the 

 same sheet. 



Coppice with standards may be distinguished from coppice by 

 the addition of miniature trees. 



Selection forest may be indicated by colouring it with the 

 wash of the principal species, and indicating other species by 

 special marks. 



Blanks remain uncoloured. 



The stock map should be renewed whenever a new working 

 plan is prepared ; if this is done, it gives, in the course of 

 time, an excellent representation of the history of the forest. 



The two following illustrations will further explain what has 

 been stated above : 



VOL. Ill, U 



