74 



WILLIAM T. M. FORBES 



like the Angora or the Assi Yuzgad types, showing that the latter 

 two can well be of the same date. 



Mixed all through with these marbles is a serpentine, in which, 

 wherever the outcrops are clear, the marble appears to be floating 



Serpentine 

 PaleGreenS. 



Tuff 



MarbU 



Sar\cUtot\«. 



Neocene. 



Route 



ltnUe. 



Fig. 6 



in large blocks. The serpentine is less in evidence immediately 

 under the ruins at Boghaz Koi, but even there the excavations 

 have exposed it enough to suggest that the arrangement is the 

 same. 



At the point where the dominant limestones give way to ser- 

 pentines, as one goes south from the village and the ruins, there is 

 an east-and-west bed of a dense siliceous rock that also appears 



