206 ECONOMICS OF FORESTRY. 



changes in economic conditions will have to take 

 place, among which we may single out reduction 

 of danger from fire ; opportunity for utihzing infe- 

 rior material ; increase in wood prices by reduction 

 of the natural supplies on which no cost of produc- 

 tion need be charged ; the development of desire 

 for permanent investments instead of speculative 

 ones ; an extension of government functions in the 

 direction indicated in the first chapter, leading to 

 the practice of forestry by state governments on a 

 large scale. 



Meanwhile all that can be expected from private 

 forest owners is that they may practise more con- 

 servative and careful logging of the natural woods, 

 avoiding unnecessary waste, and as far as possible 

 paying attention to silviculture, the reproduction 

 of the crop, leaving to the future the attempt to 

 organize a sustained yield management. Only 

 governments and perpetual corporations or large 

 capitalists can afford to make the sacrifices which 

 are necessary to prepare now for such a manage- 

 ment. 



In order to secure the data upon which the fell- 

 ing budget may be regulated, a forest survey is 

 necessary, which will embrace not only an area 

 and topographic (geometric) survey, serving for 

 purposes of subdivision, description, and orderly 

 management, but also a quantitative survey, an 

 ascertainment of the stock on hand in the various 

 parts of the property, and of the rate of accretion 



