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PARAGRAPH XXIV. 



STATISTICS OF PRODUCTION. 



The production of the forests may be considered in two ways: 



(a) As increment production, or as the amount of new wood 

 actually formed in the forest. 



(b) As commercial production, or as the amount of timber 

 and wood taken fromi the forest. 



ad (a). Increment production, as regards timber fit for lumber, 

 is almost at a standstill in the United States. In the primeval 

 forests, the death rate equals the production ; and in cut-over 

 forests, the production of timber proper is very small. Since 

 large amounts of timber are annually destroyed by fire or 

 caused to deteriorate, it may be said that the actual increment 

 production of good lumber in the United States is nil. On the 

 other hand, the production of wood fit for fuel, etc., is large 

 on cut-over land not too heavily burned. It is impossible to 

 give accurate figures ; 200,000,000 cords, perhaps, is a safe est- 

 imate of the wood annually produced by growth in the United 

 States. 



Theoretically the increment or rate of production in any given 

 forest depends on : 



1. Species grown, conifers generally producing more than 

 hardwoods. 



2. Climate and soil. 



3. Condition of the stumpage. 



In the German forests the average annual production of timber 

 per acre is 90 feet b. m. The fuel production per acre and year 

 amounts in Germany to two-thirds of a cord. 



In Germany, the production of lumber is increasing, while 

 the production of fuel wood is decreasing continuously. For 

 the various state forests in Germany, the participation in the 



