CONTENTS. 



HI 



4. Si^e-classes of trees enameratecl 



5. Enameration of trdes . . . 



6. Recordiog the resalts of enumerations 



Page. 



56 



56 

 60 



Section VI.— Calculation of the toittme oe material. 

 1. Calcalation of volume by means of type-trees . . • ■ 



Section VII.— CALCUiiATioN ob the exploitable ase. 



1 . General rules , 



61 



64 



CHAPTER IT.— THE WORKING SCHEME AND THE CALCULATION OP 

 THE POSSIBILITY DISCUSSED UNDER THE VARIOUS METHODS 

 OP TREATMENT. 



Section I. — Peeliminaey explanations. 



1. General arrangement follovred . . . 



2. Manner in which the possibility is prescribed 



3. General and special working schemes . 



4. Provisional working scheme 



5. Preparatory period ..... 



6. Prescribiag the fellings .... 



69 

 69 



70 

 70 

 71 



Section II.— .The woezino- scheme and the caloulation or the posaisiLiTy 



UNDEE the method OE SIMPLE COPPICE. 



1. General working scheme . . • • t . . .75 



2. Exploitable age 75 



3. Period for which the fellings are prescribed ..... 75 



4. Area to be operated on ..»..•.. 75 



5. Order to be followed in the fellings ....... 76 



6. Nature of the fellings 76 



7. The possibility 76 



8. Conversion of irregular forest into coppice ..... 78 



9. Sapplementary regulations : belts ol trees ...... 78 



10. Works of improvement .79 



Section III. — The woekins scheme and the calculation of the posaisinTr 



UNDEE THE OOPPICB-SELECTION METHOD. 



1. General working scheme 79 



Section IV. — The working scheme and the calculation of the possibility 



DNDBB the BBANCH-OOPPICE METHOD. 



1. General working scheme ......... 79 



2. Modification of the method '. .80 



