224 FOREST VALUATION 



3. Average age. Range of ages. 



4. Sizes. Average and range of diameters and 



heights. 



5. Condition. Thrift, damage, with causes. 



6. Chances of survival. Competition with older 



timber, and with worthless species, or brush. 



7. Probable commercial value at maturity. 



VI. Soil . Quality. Agricultural value. 



VII. Logging conditions; summary for "logging chance" 

 rather than for each subdivision of estimate. 



1. Topography. By map or description. 

 Character of slopes. Obstacles to logging. 



2. Surface. 



a. Underbrush. 



b. Rock. 



c. Character of bottom. 



3. Transportation. 



a. Streams, character for driving, cost of im- 



provements. 



b. Routes for roads, or railroad spurs. 



c. Methods of skidding and hauling. 



VIII. Modifications of logging required by silvicultural demands. 

 Summary for logging chance. 



1. Amount and character of merchantable timber 



to be left standing. 



2. Methods of brush disposal, and precautions re- 



quired for protection of young timber (if not 

 summed up for larger areas as a whole). 



IX. General conditions affecting appraisal. 



1. Market value of lumber, or price basis. 



2. Size of mill, and cost of milling, with profits. 



Investment required. 



3. Cost of main transportation system. 



