IQ i, THE GEOLOGIST. 



;!■ ;> i Great Conglomerate. 



Cephalaspis asterolepis and C") 

 Lyellii, Pteraspis Lloydii (?). ) 



Upper Sandstones. 



Upper Cornstones. 



Grits and Sandstones. 



Cephalaspis LyelUi, Pteraspis') 

 Lloydii, and P. Lewisii. $ 



Cephalaspis Lyellii (?) and 



Murchisoni, Pteraspis rostra- > j // 



tus and P. Banksii. i////t 



/''« rdspia friivcatus, P. BanksU^ '^MffljCf/i/ / 



and P. rostra tits, Cephalaspis > <ffl-A~ 



Sateoeyii, C. Lyellii Q), Auch- V 



c/iaspis Salteri. J V / 



Pteraspis Ludensis, 



Pteraspis Ludensis 



Y/////M Lower Tilestones. 

 Downton Sandstones. 

 Upper Ludlow Rocks. 



Ayrnestry Limestone. 



Lower Ludlow Rocks. 



