238 PROCEEDINGS OF THE COTTESWOLD CLUB 



This is a case of a duplicate valley. The upper valley 

 was cut out by a stream which flowed past Evesham, along 

 the course of the Isborne, and past Charlton Abbots into 

 the Coin : it was a Thames tributary. 



And yet this stream was probably not an original one. 

 The more original stream took a course from north-west 

 to south-east : an indication of a part of its course may 

 be seen in the valley by Hailes, Pinnock, and Guiting. 

 This valley is a fine example of a breach of the Oolite 

 escarpment caused by an old river. A north-westerly 

 extension of the Windrush was this river, reaching back 

 towards the Malverns. This was the more original 

 stream. It was tapped by the northward extension of the 

 Sevenhampton branch of the Coin, when the main stream 

 of the Coin came from beyond Cheltenham. 



Time did not permit this matter being touched upon 

 when the paper was read ; but Dr. T. S. Ellis noticed in 

 the discussion, that from the Severn at Tewkesbury up 

 the course of the Swillgate into the Chelt valley by 

 Dowdeswell, and so into the Coin valley, was all a follow- 

 ing of comparatively low ground. And it seems that he 

 had many years ago first enunciated the idea of this part 

 of the Severn having taken this course into the Thames, 

 and of the westward rising of Thames tributaries on the 

 west side of the Severn valley, when that valley was not 

 in existence, and when there was no Severn as a river in 

 the present sense. I gladly take this opportunity to draw 

 attention to his paper ; for, if I may say so, it contains 

 the germ of some remarkable ideas with regard to ancient 

 river-courses which we are now beginning to understand.* 



So [ conclude the account of a tour expressly under- 

 taken to a country where there are no Jurassic rocks, in 

 order to give me a needed rest from geological work. How 

 exactly it fulfilled its object may be gathered from this 

 account. 



* ' On some Features in the Formation of the Severn Valley as seen near Gloucester,' 

 Gloucester Philosophical Society, 1882. 



