COAL    IN    MOUNT    DIABLO    RANGE,    CALIFORNIA.  225 
a  position  in  which,  were  the  analogy  true,  coal  would  most  likely  !><'  found.  Paleontologic 
and  structural  evidence,  gathered  during  a  brief  reconnaissance  of  this  territory,  appears, 
however,  to  indicate  that  this  analogy  is  not  true  and  that,  in  reality,  the  sandstones  resting 
on  the  Franciscan  along  the  top  of  the  range  lie  stratigraphically  unconformably  above  the 
coal-bearing  sandstones,  and  are,  therefore,  not  likely  to  contain  coal.  Fig.  (.).  illustrating 
the  probable  structural  relations  in  the  area  under  discussion,  will  indicate  better  than 
words  the  reasons  for  this  last  statement. 
