











IV. Modern Age. 

 III. Tertiary Age. 



II. Secondary Age. 



I Palseozoic Age. 

 Metamorphic Rocks, 



Upper Tertiary Formatiou. 



Lower Tertiary " 



WM^^^^^M^M Cretaceous " 



1 Oolitic •♦ 



Trias " 



Carbociferous " 



Devonian " 

 Upper Silurian " 



Lower Silurian *' 



^^^§T aF THE l/^RTfr8 ^§ ^IL^Ti© TQ> 



