EUROPE. 61 



gracilis ; 6. Zone of Micraster hreviporus. The eastern developments 

 of the zones, where they have an argillaceous facies, are next con- 

 sidered, — first, in the department of Marne, where the clay of zone 1 

 is replaced by ^c/aize^' while argillaceous marls occur in zone 2; zone 

 3 presents two divisions only in the S., and in the N. only one, viz. 

 that of Bel. ;plenus ', zone 4 continues as nodular chalk; and zone 5 

 becomes more clayey. In the Ardennes zone 1 is chiefly sandy, zone 3 

 is only represented by the marl of Bel. plenus, zone 4 is wanting, and 

 zone 5 is still argillaceous. In Aisne and Nord the series is much the 

 same, but zones 3 and 4 are fully represented by argillaceous beds. A 

 full list of the fauna found in the zone of Bel. plenus is added, and a table 

 of the variations which have been traced in the beds described. A. J. J-B. 



Benoit, Emile. Essai d'un tableau comparatif des terrains tertiaires 



dans Ic bassin du Ehone et des Usses. [Comparative table of the 



Tertiary beds in the Basin of the Rhone and of the Usses vaUey.] 



Bull. Soc. Geol. France, 3 ser. t. iii. pp. 436-451. 



In descending order the divisions recognized by the writer in this 



district are : — 



1. Sandy Mollasse. 



2. Hard beds and shelly grits. 



3. Grey Mollasse. ^ =Fahlimfl of Touraine. 



4. Blue Mollasse. 



5. Local conglomerate. 



6. Grouty Mollasse. 



7. 3rd freshwater beds and lignites. 



8. 2nd red Mollasse. 



9. Drifted beds. 



10. Felspathic grit. 



1 1 . 2nd freshwater beds. 



12. Gypseous Mollasse. 



13. 1st freshwater bed. 



14. Micaceous grit (fucoidal ?). 



15. Ist red Mollasse. 



16. Siderolitic deposits. = From the last to the Chalk exclusive. 



G. A. L. 



Berthelin, Or. Note sur les subdivisions de I'^tage ne'ocomien aux 

 environs de Bar-sur-Seine. [Ncocomian subdivisions in the neigh- 

 bourhood of Bar-sur-Seine.] Mem. Soc. Acad. Auhe, 3 ser. t. xi. 

 (xxxviii.) p. 237. 



Bianconi, G. A. Prove della contemporaneita delF epoca glaciale 

 col periodo pliocenico a Balerna e a Monte Mario sul Reno. 

 [Proofs of Synchronism of the Glacial epoch with the Pliocene 

 period at Balema and at Monte Mario.] llend. Ace. Sci. Bologna, 



. [On some Argillaceous Slate of Miocene age.] Bend. Ace, 



Sci. Bologna. 



Bingmann, E. [Discovery of a deposit of Potash and Rock-salts at 

 Peine.] Zeitsch. Berg-, lliitt. Salinenw. vol. xxiii. p. 41. 



About three miles south of Peine, on the Brunswick-Hanoycr line of 

 railway, the Muschelkalk appears beneath the Cretaceous series. This 



E 2 



= Orleans limestone and limestone 

 and millstone of the Beauce. 



= Fontainebleau sands and pebble- 

 beds. 



=From the Brie limestone to the 

 white marls of the Paris 

 Basin inclusive. 



