lyS PROC. COTTESWOLD CLUB vol. xiii. (3) 



A most interesting example of Fig. 9 occurs near 

 Withington ; the cutting is all but completed — the neck 

 is 5 feet, and around the meander is 50 yards. There, 

 too, may be seen the different features in the cutting of a 

 valley, due to shrinkage in the river volume. 



The following is some of the Hterature on the subject : — 



W. M. Davis, ' Development of English Rivers ; ' Geo- 

 graphical Joitrnal, vol. v., 1895. 



H.J. Osborne White, ' High Level Gravel ;' Proc. Geol. 

 Assoc, vol. XV., pt. 4, 1897. 



S. S. Buckman, 'Development of Rivers;' Natural 

 Science, April, 1 8 99. 



By means of some of the blocks which appeared in my 

 paper above mentioned, on " The Development of Rivers," 

 I can illustrate these remarks somewhat more fully. It 

 may be premised that dip streams are termed consequents, 

 strike streams, subsequents, and anti-dip streams, obse- 

 quents.^ Then in Fig. 10, A there is a representation of 

 a theoretical case, a series of consequents flowing with 

 the dip being threatened by a subsequent which is develop- 

 ing along the strike of soft rocks, such as those of the 

 Lias vale. In Fig. 10, B there is shown a further theor- 

 etical case, the result of the successful growth of this 

 subsequent. It has captured the consequents successively, 

 has turned them to its own system, and has started ob- 

 sequent streams in the former valleys of the consequents 



* Such terms as dip streams, etc., would suit the Cotteswold district well enough ; 

 but would be inapplicable in other cases. For instance, strata which dip, say, east may 

 cover unconformably older strata dipping west. The covering strata may give rise to 

 a dip stream, may in course of time be entirely denuded — and then the same stream 

 maintaining the same course has become an anti-dip stream because its channel is cut 

 down through the underlying strata which dip the opposite way. Yet this stream is not 

 an obsequent. There is what seems to be such a case in the Carding Mill stream which 

 flows from the Longmvnd into the Church Stretton valley, in Shropshire ; it appears to 

 be an original consequent which has by cutting down become an anti-dip stream. 



But the terms such as consequent, etc., are awkward, because they clash with ordinary 

 English words. 



