IN THE NORTH-EASTERN CARPATHIANS. 681 



E. Conclusion. 



From the evidence now given it is apparent that glacial deposits 

 are not abundantly developed in the valleys of the North- eastern 

 Carpathians. The drift in the upper reaches of the Theiss is of the 

 most fragmentary character, being confined mainly to the broader 

 portions of the valley. This is, perhaps, what might be expected 

 when we consider the general features of the valley-system along 

 with the nature of the materials which form the masonry of the 

 range. There is, however, sufficient evidence for maintaining that 

 the Theiss valley was filled with a glacier upwards of 45 miles in 

 length. We were not able to determine whether this glacier ever 

 debouched on the plains of Hungary, or whether it ever reached the 

 edge of the Carpathian chain ; but it is not improbable that further 

 examination will prove that such was the case. 



