OF THE PARIS BASIN. 



Fig. 6. — Sectio?i of Calcaire Grassier at Arcueil. 

 Showing junction of Upper, Middle, and Lower Calcaire Grossier. 



§1 n Vegetable Earth. ft. in- 



O 



-TTT 



^?3 



O 



o 



o 



o 



o 



o 



^TTTwTTni 



^^S 



'Caillasses proper 



• 19 



II Roche (de Paris) . . . . ? 



in Rochette . 



3 Souchet (Rag stone). 



8 Banc franc (de Paris) 



7 Clicquart 



6, Banc Vert 



. 3 



4 Lambourdes 



:) Bed with Turritella 



( Banc a Verrains 1 t 

 i x^ ■,, ■ I In 



2 j {Ceritkiiimgigan-\ -^ 



J Bed with 



Nummulites Icsvigaius 



From Dr. Hovelacque's Notes. 



i Banc Royal ... . . 2 



3 o 



4 o 



16 o 



