ADAMS 
PLATE VI 
fr V t 
vjjvv 
- \ 
* -vV.. 

. 
' , 
''V / 
A. PHOTOGRAPH OF POLISHED SURFACE, (NATURAL SIZE) 
PHOTOMICROGRAPH OF THIN SECTION, (x 3O DIAM.-NICOLS CROSSED) 
GRANITE, BAVENO, ITALY. 
