l82 



PROC. COTTESWOLD CLUB vol. xiii. (3) 



would compete among themselves ; one would become a 

 master stream by developing subsequents along the strike 

 of soft rocks, and would in this way capture its neigh- 

 bours, turning them to its own system. Fig. 13 shows 

 the position of affairs which may be supposed to have 



,— >^ 



\ il 



.^ 



-^ ■■ w 



\< V' 



1 .A \ '^^ ••■■..■•? -^jt 



Fig. 13. A SUPPOSED LATER STAGE OF RlVER DEVELOPMENT THAN THAT SHOWN 



IX Fig. 12 — the Severn working its way up the vale of Gloucester, but 

 not yet having captured what may be called the Cheltenham river group — 



the Coin system. Consequents Subsequents - - - - - 



Obsequents | I | | | [ 



existed while the Severn was engaged in working its 

 way back. The Coin flowing through the gorge east of 

 Cheltenham became a master stream, collecting to itself a 

 considerable amount of the drainage of the then high level 

 vale of Gloucester by beheading its neighbours, such as 

 the Churn, the Leach, the Windrush. 



