EXPLANATION OF THE PLATES. 



Plates VIL to XXIIL 



Illustrate Dr. Fitton's paper "On some of the strata between the Chalk and the Oxford 

 " Oolite, in the South-east of England" : p. 103, to 378. 



Plate VIL 



Contains small portions of the Maps of Ke7it, Surrey, and Wiltshire, reduced to half 



the scale of the Ordnance Survey. 

 Fig. 1. Part of the Coast of Kent: p. 105—119. 

 Fig.'Z. Fart of Surret/ : p. 137— 142. 

 Fig. 3. The Vale of Wardour, South Wiltshire : p. 24.5— 254. 



Plate VIII. 



A Sketch of part of the Coast of Kent, from Hijthe to Folkstone Hill', reduced from a 

 drawing by the Rev. J. D. Glennie: p. 108—127. 



Plate IX. 



Map of part of the South East of England, and of the opposite Coast of France, on the 

 same scale with Mr. Gardner's reduced Geological Map of England; about 18 

 miles to an inch. The space occupied by strata above the chalk is taken from Mr. 

 Greenough's Map. The divisions below the chalk are inserted from the information 

 stated in the present paper, and will be given on a larger scale in the new edition of 

 Mr. Greenough's Geological Map. The continuous red lines, numbered 1. to 25., 

 refer to the sections described in this paper, and represented in Plate X. a. The 

 dotted lines adjacent to Nos. 15. and 16. represent the course of Mr. Lonsdale's 

 sections, (Geol. Trans, 2nd Series, vol. iii. pi. 32.) ; and those adjoining Nos. 18 

 and 21, are transverse sections in Oxfordshire and Bucks. The blue lines denote 

 some of the anticlinal lines ; those in the vicinity of Bristol are from Messrs. Buck- 

 land and Conybeare's map, (Geol. Trans. 2nd Series, vol. i. pi. 38.) ; the rest from 

 the statements of the present paper. 



On the French coast, from Calais to Treport, the colours are inserted from the manuscript 

 notes of the author: In the Pays de Bray, and thence to the mouth of the Seine and 

 coast of Normandy, they are taken principally from M. Passy's map of the Depart- 

 ment of the Lower Seine, with some additions by Mr. De la Beche : thence to 

 Cherbourg, from the maps annexed to the papers of M. Desnoyers and M. Con- 

 stant Prevost, in the Annates des Sciences Naturelles, tome iv. 1825; and of the 

 former, in the Memoires de la Societe d'Histoire Naturelle de Paris, tome ii. 1825. 



The depths of water in the English Channel are taken from the Admiralty Chart. The 

 lines under the figures were intended to represent the form of the bottom; but the 

 depths are so enormously exaggerated, that without explanation they would convey 

 a very erroneous impression. Mr. De la Beche's section of the channel between 

 Portland and Cape La Hogue*, on the true relative scale of depths and horizontal 

 distance, and more than five times as long as in this map, is scarcely different from 

 an uniform line ruled with a common pen. 



* " Sections and Views," &c. 4to, 1 830. Plate II. fig. 2. 



