lUO 



CHAPTER IJ. 



INDUSTRIAL USES OF WOOD. 



There are few raw materials wliich possess such extensive 

 powers of adaptability and are so largely used for industrial 

 purposes as wood. A casual inspection of the interior of any 

 building is sufficient to convince one of this. 



Wood may be classified according to the manner in which it 

 is used, as timber and firewood. In timber the dimensions 

 and shape of a tree and its individual technical properties 

 are of paramount importance, and decide the purpose for which 

 it can be used ; as regards firewood, however, they arc of little 

 importance, for wood unfit for any other purpose may at any rate 

 be used for fuel. 



Subdivision I. — Timber. 



Section I. — The diitekent Classes of Convekted Timber. 



1. (icncvdl AccuHiit. 



The demands on timber are as varied as the kinds of timber 

 available. In considering merely the woods used in the con- 

 struction of buildings, furniture, implements, tools, and the 

 innumerable articles of convenience, art and comfort, it will be 

 readily perceived that nearly every object requires a special kind 

 of wood. If, therefore, a forest is to be worked intensively, so 

 as to yield the highest possible revenue, it should produce wood 

 which may be used to the greatest advantage, or, in other words, 

 which is most valuable. 



In order that the produce of a forest may be of this nature, 

 the forester should possess a thorough knowledge of the special 

 requirements of industries using wood, which is too much to 



