Professor Sedgwick and Mr. Murchison on the older Deposits, &;c. 301 



Such is the result of our examination of the older rocks of Franconia. Our ge- 

 neral conclusions respecting the succession in the Rhenish provinces in Belgium, 

 and in the Hartz, which are based upon a much more extensive and accurate sur- 

 vey, have been offered in the previous parts of this memoir. Our opinions are 

 now presented to the Society in the best form we are able to give them, as induc- 

 tions from all the facts we have been able to bring together, supported by such 

 natural analogies as bear upon the questions of classification. We may have been 

 led into some mistakes by a false interpretation of the evidence (often of a kind 

 very intricate and difficult to disentangle) ; but we deny that we have in any in- 

 stance turned ourselves away from the evidence that was before us, and based our 

 conclusions on a preconceived hypothesis. The general results appear, as far as 

 they go, to confirm the justness of the methods by which the geologists of this coun- 

 try have toiled to mark out the succession of their formations ; and we think also 

 the justness of the conclusions at which we had arrived in former papers, respect- 

 ing the true sequence of the older formations of Great Britain. 



VOL. VI. — SECOND SERIES. 



