340 REPORT OF THE FOREST, FISH AND GAME COMMISSIONER. 



realizes, however, that the financial rotation is subject to change and is 

 satisfied with fixing it approximately. The plan of cutting embodies the 

 following points : 



There must be cut: 



i. All economic necessities, especially severance cuttings. 



2. All decidedly mature woods the indicating percentage of which 



is too low. 



3. All woods must be sacrificed to the proper progress of the axe 



within the cutting series; for instance, a group of polewoods 

 lying between two mature pieces. Whether such a sacrifice 

 should be made or not is answered according to the rules of 

 forest finance. 



4. All such woods as are about to mature, as far as such woods 



can be reached by the axe in the proper progress of 

 cuttings. These are the pieces for which an exact examina- 

 tion of the indicating percentage is particularly desirable; 

 which, however, are so near financial maturity that 

 mistakes made will entail small losses only. 



By summing up the areas and yields of the above headings, the periodi- 

 cal yield is ascertained. Control is required whether or not the market is 

 able to consume that yield without changing the prices of forest produce 

 on which financial calculations are based. The contents of the working 

 plan are as follows: 



1. Actual conditions of the forest. 



2. Compartments, cutting series, plan of road building. 



3. Yield. 



4. Future treatment, silviculturally, and forest utilization. 



5. Detailed descriptions of compartments and sub-compartments. 



The method recommended by Dr. Raess might be termed the method 

 of sustained money yield. The method pays full attention to the silvi- 

 cultural as well as the financial requirements of the forest, and gives the 



