PRESTWICH BRITISH AND FOREIGN TERTIARIES. -43 



At Armeutieres, uuder 37 feet of Londoii Clay, M. Meug}- describes* [op. 

 cit. p. 152'! : — 



ftvt. 



" Blackish Siind. rather compact 10 1 (Basetnetit betV:"^ 



Loose greeu saiul 34 I- Upper Laiuleniau. 



Plastic day 2 J (frooitrieh ic Reading series.) 



Greenish clavev sand 52 1 r t j • 



f> , , • • ,rt Lower Landenian. 



Compact cliiv 10 > ,., ^o 7 \ 



Hani ana ilrv clav 36 J ^ 



Chalk." 



A little beyond our line of section, and fiuther to the east, a well- section 

 at Toiircoiug (p. 150^ giive, — 



feet. 

 "Clay 7i 



Shifting sand 36 



Blue clay 147| Ypresian clay. Loudon Clay. 



Green sand 16 "I t- i j • 



c rr •* . I I piM?r Li\n«ienian. 



beam ot liuiute -x > ri- . • ». « j- • \ 



<> _ , t,^\{J1 ooltnch i^- ReadtHO series.) 



brcen saml 44 J ^ ' 



Clay mixed with sand 22 "^ 



Clav with seam of iron pvrites 3 t t :i ■ 



/^, • ■ J . I 3 *^' 1 13. Lower Landenian. 



tlav mixed wnth sand — at base a hard stone > -r^ * o j ^ 

 ■ ,, K . *• • -\ I - • 11 oo \Tnanet ixrndjt.^ 



{CATbonaxe ot iron : ), 4 to o ni. thick ... 3.> I ^ 



Black sandv cKiv — drv and with pebbles 57 J 



Chalk." 



At La Magtleleine near Lille (p. 14S), under drift and 2S feet of London 



clav. there occurs, — 



feet. 



*' Fine srreen sand 10 1 t- t j • 



n%». ".I e 1 .1 >• L ppor Landenian. 



Ditto with a seam of clay 2 j ^^ 



Argillaceous green sand, effervescing: with acids 46 1 



Blackish grey clay, very compact 2S v Lower Landenian. 



Grevish anrillaceous sand (eilervesces) 11 J 



Chalk." 



At Orchies (p. 146), to the southward of Lille, under IS feet of drift and 

 20 of London clay, there are, — 



feet. 



*' Grey quick-sand 14 



Green sand 70 



Seam of clay and thin quick-sand 2 



Hani sand 2S 



Clav 21 



Hard sand 6 



Clay and sand 5 



Xe;ir Faumont, between Lille and Douai, the section is as follows — 



feot. 



" Vegetable soil and clay 25 Ypresian clay. 



Blackish quick-sand "It- t j • 



r> -1 3 ..I rui 1 .'- V L pper Landeman. 



Green quick-s<\nd with a seam of blue clay ... b4 j '^^ 



Green sand aud hard clav 24 1 ^ t j • •• 



Plastic clay .' 2S } Lower Landenian. 



M. ^leugy further speaks of the upper frb^ucouifemus snnds i^I'pper 

 Landeniau?) which forms the small oiuliors south of Doiuii and of the 

 River Scarpe. It is not clear from the text if he means that the Lower 

 Sands are wanting; but in his sections he makes the outlier at Bruue- 

 mont, near Douai. to consist of both Lower and Upper Landenian — 



* In* these descriptions. 1 merely give a literal translation of the original — my 

 own additions are in italics. 



s2 



► Upper Landenian. 



■• Lower Landenian. 



