PRESTWICH WOOLWICH AND READING SERIES. 



14; 



Well-section, Mortlake B7'ewery. 



(Dr. Mitchell's MSS. vol. iv. p. 207.) 



Feet. 



Gravel 10 



pj J b. London clay (ash-coloured compost) ... 90 



^'\a. Mottled red passing into red 109 



' h. Green sand 9 



jr. Yellow sand 3 



y. Greenish sand and clay 17 



n J. p . e. Purplish clav with lignite 4 



trL?'''''' I '^^ Yellow sand .^ 2 



c. Light green sand 4 



I b. Ash-coloured clay with sAe/& 15 



\ a. Green sand 4 



London 



II. Woolwich and 



Chalk 



267 

 3 



270 



The term " Mottled clay " applied to Stratum a. 11. is, I suspect, a 

 wrong term. I have therefore grouped it as part of the London 

 Clay, which gives a thickness to that formation agreeing with neigh- 

 bouring sections. 



Well-section, Griffin Brewery, Chiswick, 

 (Mr. R. W. Mylne.) 



Feet. 



Earth and gravel T 



Sand and fine gravel > 40 



Gravel and sand J 



London Clay. Blue clay 140 



fe. Mottled clay 6 



d. Blue clay mixed with sand 9 



c. Brown and sandy mottled clays 15 



b. Bright red, yellow, pink and"! -„ 

 bluish mottled clays J 



a. Pebbles in bluish mottled clay 7 



e. Yellow sandy clay - 1 



d. Variegated sand 2 



c. Green and brown sand 23 



b. Hard green sand "I o 

 _ a. Flints J __ 



299 

 Chalk 46 



Well-section, Kensington Workhouse* . 

 (Mr. R. W. Mylne.) 



Feet. 



Made ground 8 



Gravel 3 



London clay 179 



Woolwich and Reading J Mottled clays 38 



Series and Thanet Sands. \ Pebbles and sand 42 



270 

 Chalk 100 



ii. Woolwich and 

 Reading Series, 

 90 feet. 



III. Thanet Sands, 

 29 feet. 



* In this section, as in that at Netting Dale, the lower sauds and pebbles of the 

 Woolwich series have, I believe, been confounded with the Thanet Sands. 



