36 BvoLunow 



A SIMPLE GEOLOGICAL SCALE 



N i TE V: The above table is simplified for the purpose of this 

 re, i h from the thickness 



ion years for th 



i TE V: e above table is simplified for t 



wore, i he age is assigned approximately (from the thickness 

 the strata) on a scale of fifty-five milli 



Stratified rocks. 



