104 THE PRINCIPAL SPECIES OF WOOD. 



fine, true, and strong, such as the sheaves of pulleys and 

 handles of tools. The supply is obtained from two species 

 (Guajacum sanctum and Guajacum officinale). 



Holly may be known by its foliage and berries. Box 

 (Buxus') has small, smooth, ovate, dark, evergreen leaves 

 joining the stem so as to be opposite one another. The Dog- 

 wood is known by its flowers; the Lignum-vitae is a low gnarled 

 tree. 



