FRONTISPIECE. 



A. Transverse Section (across-grain, or 

 horizontally as the tree stands) 



1!M 



mm 

 SUM 



mBm 



B. Vertical Radial Section (quartered 

 showing Silver-grain). 



Vertical Tangential Section 

 Iplankwise). 



If I; |I 



Ml fli 



fe fit 



mmlm 



G. Vertical Section in a direction 

 between B and C. 



OAK, 



Showing the difference in appearance of the various Sections (Natural size). 



