140 



TIMBER AND TIMBER TREES, [chap. xvi. 



sides, and then sawn down the middle ; the logs have 

 thus a nearly semicircular form (Fig. 22), the average 



contents of each being 

 only about 16 feet cube. 

 This timber derives its 

 chief value from the 

 figured appearance it pre- 

 sents when cut, or con- 

 verted in the direction of 

 its medullary rays into 

 boards or veneers for 

 cabinet purposes. 

 Riga wainscot timber passes through the process of 

 bracking prior to its being shipped, and dealers have 

 the option of making their selection from either the 

 Riga, English, or Dutch crown qualities — or the brack 

 quahty — at prices varying with the market rates. It is 

 sold by the log of 18 feet cube, a peculiarity in the 

 mode of selling which is exclusively confined to this 

 description of timber. 



