CHAPTER XVI. 



WORKING-PLANS. 



A WORKING-PLAN is nothing more than a proposed 

 scheme of operations; but the term is generally 

 used to signify that there is some system in the 

 scheme ; that it is based on more or less precisely 

 ascertained data of the amount of standing stock 

 of each period, rate of growth at each stage, yield 

 of thinnings, with the order in which the several 

 blocks require thinning ; order of final clearing, 

 with the financial results of these operations, and 

 on a reliable method of reproduction, the costs of 

 which have been approximately determined; and 

 that it aims at utilising the increment, and per- 

 petuating the capabilities of the forest, or of 

 improving them if it has suffered from past mis- 

 management. 



On the ordinary Planter betrieb, the principal data 

 are restricted to the average annual increment which 

 is cut out yearly as mature timber, and the method 

 of working out the timber. 



If a forest officer proposes to fell as much 



