128 FORESTRY 



determine the amount of the forest capital, may be derived 

 the interest on the working capital (T + L + M). 

 The relationship may be stated as follows : 



This per cent., p h has been called the " indicating " per cent. 

 (Pressler) ; it is useful as showing the return yielded by a 

 forest at any desired period, and it seeks to determine the 

 financial maturity or most profitable rotation of a wood. 



Collection of Data for Working Plan 



Previous to the regulation of forest management and con- 

 trol of the woods by means of a working plan, the total area 

 of a forest property is divided into suitable compartments, 

 and measurements are taken after the manner described above. 

 The results of such a survey and all relevant matter are 

 brought together in a stjiistical-of-de&cciptive report. The 

 two large divisions of this document are terrneoTThe General 

 and the Special Reports. The former concerns itself with 

 the prevailing conditions of the forest area as a whole, and 

 deals with such questions as ownership, public rights or servi- 

 tudes, the area .occupied by forest growth, the sylvicultural 

 systems adopted, the character of the soil and situation, 

 marketing facilities, means available for transport of produce, 

 data regarding the quantity of timber hitherto utilised and 

 the monetary returns, notes regarding the executive staff, etc. 



The Special Report is a detailed description of each 

 division or subdivision of the forest. In it the quality of 

 the locality, the nature of the existing crop, and proposals 

 for future management take the foremost place. The first of 

 these, the locality, is judged from the soil's physical and 

 chemical condition, depth and degree of moisture, the 

 altitude, slope, exposure, and general relations to climatic 



