﻿lxXXlV PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [vol. lxxh. 



continuous character of some of the beds seemed to show that, 

 despite all minor disturbances, the general sequence could be 

 trusted. The comparison of the different lines of section leading 

 up to Dartmoor showed them to be strikingly similar. The 

 granite was, moreover, intruded all along at precisely the same 

 horizon, and its direct offshoots never reached into the lower of 

 the two important bands of limestone, but were confined to the 

 altered shales at the bottom of the series, which afforded, where 

 fresh, good examples of andalusite-hornfels. The series, which 

 extends from south of Sourton to Drewsteignton, and perhaps right 

 round to Doddiscombeleigh, appears clearly older than the shales 

 which have been so carefully searched for fossils in the Exeter 

 region by Mr. F. J. Collins. These last are considered to be of 

 Pendleside age, and nowhere contain any traces of limestone. 

 The probability is thus indicated that the distinctly calcareous 

 series under consideration may represent part of the Carboniferous 

 Limestone. 



It may be noted that, although a number of bands of epidiorite 

 representing intrusions of dolerite occur roughby parallel to the 

 strike of the sediments, the contemporaneous rocks are never of 

 such basic character. The main band of tuff stretches from Lake, 

 near Bridestowe, to beyond Sticklepath, and, of the numerous 

 well-preserved rock-fragments that it contains, most are of rhyo- 

 litic or trachytic character, with some which represent altered 

 andesites. 



Lantern -slides and specimens of IZdestus were exhibited bv 

 A. Smith Woodward, LL.D., F.R.S., V.P.C.S., in illustration of 

 his paper. 



Lantern-slides, microscope-slides, and rock-specimens were ex- 

 hibited by Arthur Holmes, D.I.C., B.Sc, A.R.C.Sc, F.G.S., in 

 illustration of his paper. 



