6o 



TIMBER AND TIMBER TREES. [CHAP. 



The experiments on the vertical strength of British 

 Oak are given in Tables XV. to XXII. inclusive. 



TABLE XV. 



Cubes of Unseasoned British Oak. Specific gravity, 966. 

 Vertical or crushing experiments. 



TABLE XVI. 



Cubes of Seasoned British Oak. Specific gravity, 740. 

 Vertical or crushing experiments. 



