THE ANCIENT VOLCANOES OF DERBYSHIRE. 100 
road has, in fact, been cut through the agglomerate at this point, 
and a section is well exposed opposite the cottages just beyond the 
Inn. 
GEOLOGICAL MAP OF DERBYSHIRE 
SHE WING POSTTION OF VOLCANIC VENTS 
og ii 
“a 
ty 
ul leans 
it fe m 
pa Ay a 
These Vents are remarkable in that they form two well-defined 
dome-like hills. Ali the other Vents of Derbyshire appear to have 
