Quart.  Journ.  Geol.  Soc.  vol.  xlix.] 
Table  III. — Correlation  of  Strata  :  Dorsetshire,  Somersetshire,  and  Gloucestershire. 
Drawn  to  scale  :  1  inch  =  12^  feet  (1  cm.  =  5  feet). 
[To  face  p.  514. 
