Vol. 55.] IN THE REGION OF LOCH AWE. 493^ 



by the older granite, they pass over to coarse gneisses. In par- 

 ticular, the sills of epidiorite are altered to coarse hornblendic 

 gneisses in no way differing from those seen at Cape Wrath. 

 He had gone over part of the area with the Author, and they were 

 both satisfied that the increase of metamorphism indicated by the 

 largest arrow on the map shown at the meeting could not be 

 connected with the mass of newer granite seen at the head of 

 Loch Fyne. 



The Eev. J. F. Blake drew attention to the statements made by 

 the previous speakers. He understood them to say that rocks of 

 Ordovician aspect, with limestones in which fossils might be looked 

 for, passed by insensible gradations into typical Highland gneisses, 

 including in the term the gneisses of Cape Wrath. Not knowing 

 the particular district described in the paper, and the above state- 

 ments being as yet no more than statements, he was not in a 

 position to discuss them ; but they involved so much that he felt it 

 desirable to call special attention to their significance. 



