Yol. 59.] AT COWLEY, NEAR CHELTENHAM. 389 



break. The small unconformity investigated by Mr. Buckman and 

 the Author was of importance in several ways. It might help to 

 explain the unexpected absence of certain zone-fossils from beds 

 elsewhere ; it threw light upon the variations in thickness of an 

 apparently conformable series of beds ; and it presented a case of 

 'contemporaneous erosion' which showed all the essential features of 

 a true unconformity. Doubtless many other, hitherto undiscovered, 

 examples of the same kind existed. A study of these in the strata 

 of a folded mountain-chain might be expected to throw much light 

 upon the gradual building-up of the chain. In connection with 

 the repetition of a movement at a subsequent date, to which the 

 Author had made allusion, attention might be drawn to the 

 parallelism of certain of the movements on the two sides of 

 the Severn Valley : thus the synclinal axis drawn by Mr. Buckman 

 between Painswick and Stroud appeared to coincide with that 

 between the Woolhope and Ledbury districts. It was to be hoped 

 that the Author and others would continue their studies in the 

 district, and would extend them to a consideration of the folds 

 traversing the strata at the surface. 



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