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CHAPTEK I. 



COLLECTION OP STATISTICS. 



The collection of statistics is of the first importance, because 

 the whole fabric of the working plan rests upon the data, which 

 have been collected as regards the actual state of the forest 

 and the notes on the treatment, which should be applied to 

 each part. The statistics to be collected must refer, on the one 

 hand, to each wood, which forms part of the forest and, on the 

 other hand, to the general conditions in and around the forest 

 as a whole, which are likely to influence the management. 



The data to be collected may, therefore, be arranged under 

 the following heads : — 



I. Survey and determination of areas. 

 II. Description of each wood or compartment. 



III. Past yields, receipts and expenses. 



IV. General conditions in and around the forest. 

 V. The statistical report. 



The data under II. must be collected separately for each 

 unit of working or compartment ; those under III. may be 

 given for each compartment, or each working section, or for 

 the whole forest, according to circumstances. 



Section I. — Survey and Determination of Areas. 



The survey yields the necessary data, from which maps can 

 be prepared and the area of the whole forest, as well as of its 

 several divisions, ascertained. It is not intended to describe 

 here the various methods of surveying, as this work must be 

 done by professional surveyors ; the following remarks refer 

 only to those points, in which the forester must participate. 



