13 



Conipaitiiient.— The crop in each block or naturaP 

 sub-division would not usually be uniform as regards its^ 

 composition ; and where a more exact inventory of the crop is^ 

 required it will be necessary to further sub-divide each block 

 (for the purpose of making this analysis) into smaller areas, 

 as far as possible homogeneous as regards soil and composi- 

 tion and age of the crop. These sub-divisions of blocks arfr 

 called compartments. 



A compartment is therefore a sub-division of a blocks 

 as far as possible homogeneous as regards soil, composition, 

 and age of the crop ; or which can be described as a unit 

 for working-plan purposes. 



Coupe.— The area felled over, or that is to be felled over 

 in one year cr period, is called a coupe. A coupe may 

 extend over several blocks or compartments ; or, a block 

 or compartment may include several coupes. In all cases- 

 integral portions are vei7 desirable. 



Felling section.— A sub-division of a felling series com- 

 prising a number of age-gradations, the ages of which differ 

 by a certain number of years. A certain number of felling 

 sections together thus form one complete series of age- 

 gradations, or a felling series, 



Fellinn- series.— A working-circle or a part thereof which 

 forms a separate series of age-classes; 



Periodic block.-The part of a forest set aside to be treated 

 during a period or number of years into which the rotation, 

 is divided. 



Range.— A territorial executive forest charge : a sub- 

 division of a charge of control. 



Sub-compartment.— A portion of a compartment either 

 temporarily or permanently set aside for convenience of 

 worki ng. 



Working-circle.— In order to arrange definitely for the- 

 working of a large forest area it is necessary to separate 

 those portions that require diff«^rent treatment. Such sub- 

 divisions of the area dealt with are called working-circles. 



By a working-ciicle is thus understood an area, subjected 

 to f^np. and the aome method of cultural treatment, ichich it 

 is determined to exploit separately under the provisions of 



