614 



MESSRS. CLOUGH, MATJFE, AND BAILEY ON [Nov. I909, 



From 1904 to 1906 Mr. G. W. Grabham "was working alongside of 

 lis. Before leaving for the Sudan, he had completed Mr. Kynaston's 

 mapping of the Buachaille EtiveMor and adjoining areas. He had 

 also traced the fault bounding the Glen Coe subsidence from the 



Yig. 1. — SJcetch-map of the volcanic district of Northern Argyllshire, 

 showing the distribution of dylces in relation to the Etive 

 granite complex. 



[Scale : 10 miles — 1 inch.] 

 The Highland Schists are left white. Faults are shown by heavy black lines. 



Coupall River to the Cam Ghleann. But, perhaps, the chief feature 

 of his work was the establishment of the early age of the great 

 Moor of Rannoch granite, by showing that it was invaded by the 

 intrusion accompanying the Glen Coe fault. 



