LIST OF 6E0L00IGJL FORMATIONS. 163 



Magdala, the different groups succeeding eacli other on 

 the road precisely as given in the above list. 



It should be repeated here that no rock systems of 

 any importance besides those above enumerated appear 

 to have been observed by previous travellers in Abyssinia, 

 unless the coal-bearing formations of Chelga belong to a 

 group distinct from the Adigrat sandstone. 



M 2 



