
a 
B. N. A. BOUNDARY COMMISSION. 

966000C0 

MICROSCOPIC STRUCTURE OF WOODS—LIGNITE TERTIARY. 
(a), Tangential Sections. 


PLATE XY. 
Figure 2. 
(4), Radial Sections. 

if 

Cou0 000 
<< 
= = 


Figure 4. 




ne a = 

