1853.] 



FORBES ISLE OF WIGHT. 



261 



viously regarded as Lower freshwater, capped by the Upper ma- 

 rine, were really probably higher than any beds hitherto noticed. 

 The latter, in 1852, maintained that the section between Tolland 

 Bay and Sconce Point, near Yarmouth, included a series of beds 

 higher in geological position than those composing Headon Hill. 

 That Mr. Prestwich was right in his anticipation I shall have the 

 pleasure of proving beyond question, but cannot assent to the con- 

 clusion of M. He'bert, whilst admitting that his opinion on all points 

 concerning the Eocene tertiaries demands the highest respect. 



All geologists, without exception, who have compared the section 

 at Whitecliff Bay, at the eastern end of the island, with that of 

 Headon at the western, have regarded the fluvio-marine series in the 

 former place as the equivalents of that in the latter (see fig. 3). 

 Nor do any seem to have suspected tha!t the fluvio-marine beds at 

 WhiteclifF were in considerable part superior to those of Headon 

 (see fig. 2) . 



Figs. 2 & 3. — Diagram-Sections of Whitecliff Bay. 

 Fig. 2. — The hitherto received version. 



Fig. 3. — The new reading. 



& g & 



M t- «J c ^ 



CD S 1) o;a 



^ S£S "SSg 



K KWW copqS 



6. Bembridge marls, 80 feet thick. 



c. Bembridge limestone, 30 feet thick. 



d. St. Helens beds, 100 feet thick. 



e. Headon series, 180 feet thick. 

 /. Headon sands, 100-200 feet thick. 



T 2 



