NOTICE. 



Some passages of the present Memoir were marked for 

 omission or complete revision. As now modified by the 

 author (pp. 4 to 7), they are allowed to stand, by his desire ; 

 but even in their present form some elucidation is called 

 for. As remarks to the same effect have already been made 

 public elsewhere, under the title " Recent Publications of 

 the Geological Survey of India," it would be independently 

 desirable to notice those statements, although any one who 

 would take the trouble to sift the publications referred to 

 could hardly fail to take a correct view of the case, 



2. His study of the Salt-range fossils finally determined 

 Dr. Waagen (Pal. Ind., Ser, XIII— -1) to adopt for certain 

 deposits a grouping essentially different from that given in 

 Mr. Wynne's recently published memoir on that ground, an 

 examination of the stratigraphical conditions having satisfied 

 him that such a step would be justifiable, as is clearly ex- 

 plained (I. <?., pp. 7, 8). The step is a very bold one — to 

 treat as one series beds hitherto accepted as carboniferous 

 with others that had been announced as silurian. The risk 

 and responsibility of the attempt might have warned against 

 captious objections, as they certainly removed it from any 

 suspicion of frivolous change for the sake of novelty. It 

 was quite essential that Dr. "Waagen should exhibit the full 

 significance of the change he had to propose; but Mr, 

 Wynne complains that in this process his representation of 

 the former classification has been misstated and his irres- 

 ponsibility for it ignored. As editor of Dr, Waagen's text 



