EXPLANATION OF THE PLATES. 



No. 15. Poulshot-Green to Etchilhampton Down, North Wilts ; drawn by Mr, Lonsdale : 



p. 261, 262. 

 iVo. 16. Satidndgc Hill to Beacon-Dowi Hill, ^onh Wilts; Mr. Lonsdale : p. 262— -266. 

 [The dotted red lines adjacent to Nos. 15. and 16. in the map PI. IX. denote the 

 course of the Sections connected with Mr. Lonsdale's Paper in the Geol. Trans., 

 2nd Series, Vol. iii.; PI. 32, figs. 1, 4, and 6.] 

 No. 1 7. Swindon to Liddington Castle Hill, North Wilts : p. 264—266. 

 No. 18. Oxford, through SJiotover Hill, and Great Hazeley, to the chalk range, south- 

 west of Stokenchurch Hill : p. 270—274. 



The flap, No. 18'., gives the section, on a line nearly parallel to No. 18., along the 

 main road from Oxford to London, through Whcatley and Tetsworth: p. 271 — 

 279. — (See the transverse section PI. X. b. fig. 10.) 

 No. 19. From Blackthorn-Hill, in Oxfordshire, throng Muswell-Hill, Brill, and Thame, 



to the chalk near Bledlow ridge : p. 270 — 279. 

 No.9,0. From the north-west of Whitchurch, through Aylesbury, Bucks, to Wendover 



Hill, Berkshire : p. 270 — 284. — (See the transverse section, PI. X. b. fig. 11.) 

 No. 21. Through Woburn, Hockliffe, and Dunstable, Bedfordshire: p. 270 — 293. 



The flap, No. 21'., is the Section from Fenny Stratford, through Little Brick-Hill, 

 to Hockliffe: p. 270— 293. 

 No. 22. From Caxton Gibbet, Huntingdonshire, through Cambridge, to Balsham : 



p. 305—308. 

 No. 23. Haddenham, through Denny Abbey, to Bottisham, Cambridgeshire: p. 305. 

 No. 24. Through Upware on the Cam, to Swaffham Prior, Cambridgeshire : p. 305. 

 No.25. Through Lyjin, to Swaffham, West Norfolk; by Mr. C. B. Rose: p. 310—312. 

 No. 26. Hunstanton Cliff', Norfolk : p. 310—313. (See Plate X. b. fig. 12, a. b. and c.) 



Plate X. b.* 



This Plate contains miscellaneous Views and Sections, on different scales, illustrating the 



country represented in some of the sections of PI. X. a. 

 Fig. 1. A sketch of part of the Coast near Folkstone, not visible in the direct line from the 

 sea: p. 106 — 108. Reduced from a drawing by the Rev. C. D. Glennie. — (See 

 Plate X. a. No. 1. 

 Fig. 2. Section on the west of Pidborough, in Western Sussex, showing the subdivisions 



of the Lower Greensand : Mr. Martin's MSS. : p. 155. 

 Fig, 3. Enlarged Section, on the same scale of height and distance, of part of the coast 



near Hastings and St. Leonard's, Sussex: p. 164.— (See PI. X. a. No. 6.). 

 Fig. 4. Transverse Section, from Brook Point to Shalcomb Down, Isle of Wight: p. 200. 



—(See PI. X. a. No. 7.) 

 Fig. 5. Enlarged Section at Emmefs Hill, Isle of Purbeck : p. 21 1.— (See PI. X. a. No. 8.) 

 Fig. 6. Ideal Section, from St. Alban's Head to Worbarrow knob, in the Isle of Purbeck : 



page 211, 212.— (See PI. X. a. No. 9.) 



* This Plate is subsidiary to Plate X. a. ; but is placed before it in binding, that both may fold 

 out and be consulted at the same time. 



