THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



PROCEEDINGS 



OF 



THE GEOLOGICAL SOCIETY. 



February 25, 1846. 



G. E. H. Vernon, Esq., and Julius Jeffreys, Esq., F.R.S., were 

 elected Fellows of the Society. 



The following communications were read : — 



1. On the Tertiary or Supracretaceous Formations of the 

 Isle of Wight as exhibited in the Sections at Alum Bay and 

 White Cliff Bay. By Joseph Prestwich, Jun., Esq., F.G.S. 



Plate IX. 



In the London tertiary district there are but few good sections of 

 the middle and upper Eocene strata ; and there is no part of it in 

 which the order of superposition is so well shown, or can be so con- 

 veniently studied, as in the coast sections of Hampshire and of the 

 Isle of Wight. Owing to this better and more permanent stratigra- 

 phical evidence, it may be desirable, before treating of the London 

 tertiaries, to fix the subdivisions of the contemporaneous Hampshire 

 series, in order that they may serve as types and points of reference. 

 I therefore beg to submit to the Society the following observations 

 made in the autumn of 1839, which I should have brought forward 

 at an earlier period, had I not hoped to have rendered them more 

 complete by a further examination of the district, which however 

 I have not had leisure since to resume. 



vol. 11. — part i. g 



