JUDEICH'S METHOD. 331 



I 



thus indicated are added up, and they represent the yield 

 during the first, say, 10 years, unless considerations for a 

 sustained yield in the future demand certain modifications. 



It will thus be seen that the centre of the method lies in the 

 establishment of a full increment and a proper arrangement of 

 the age classes. Not a word is said about the normal growing 

 stock, because this must come of itself, if the other two condi- 

 tions of the normal state are established. 



Finally, an important part of the method is, to fix the 

 working only for a limited number of years, and to have 

 revisions at regularly recurring periods when the requirements 

 of each wood are reconsidered, with due regard to the intro- 

 duction of a suitable arrangement of the age classes, and 

 especially the introduction of small cutting series. The latter 

 point is of great importance, because it secures a perfectly free 

 hand to the manager to take each wood in hand at the right 

 moment. 



In describing the method, the author of this manual has, 

 however, introduced a few changes. Judeich bases the ripe- 

 ness of each wood upon financial considerations ; he ascer- 

 tains the forest- or indicating per cent., and calls a wood ripe, 

 if that per cent, has sunk below the general per cent. p~ 

 This the author considers too narrow a view to take ; the 

 ripeness should, in his opinion, be determined by the " objects 

 of management," as laid down by the owner of the forest, of 

 which the financial ripeness may, or not, be one. 



1. Application of Judeich' s Method to Clear Cutting in High 

 Forest and the Shelter -wood Compartment System. 



a. The General Plan of Operations. 



This is represented by a plan which gives the division of 

 the forest into units of working or compartments. The latter 

 are marked off by natural or artificial boundary lines, a& 

 described in Chapter II. This plan enables the forester to 

 determine, in a general way, the order and direction in which 



