Notices of Memoirs — Geology of Afghanistan. 121 



upper, marine, with abundance of Nummulites, and assuming a 

 brackish character to the north, and a lower partly brackish horizon. 

 The fauna throughout is Lower Eocene, and has several species in 

 common with the fauna of Ronca, and presenting some analogy to the 

 Sables inferieurs of the Paris Eocenes. This fauna numbers about 

 85 species, — among them are 6 Nummulites, 4 other Foraminifera, 

 11 Echinida, 2 Serpulce, 1 Terebratula, 1 Dentalium, 25 Bivalves, 29 

 Gasteropods, and 1 Nautilus, besides remains of Eishes and Crusta- 

 ceans. The new forms are — 1. Operculina Karreri, with conspicuous 

 transverse ribs. 2. Ottiliaster pusillus, new genus of the Echino- 

 lampas type, the anterior ambulacra having but one series of single 

 pores ; approaching Eolampas, Dune, and Slad., from Sind, India. 

 3. Ostrea Canavali, Gryphaaa-like, allied to O. cymbiola. 4. Area 

 Hosthomi, very small, with craticulate sculpture. 5. Corbula semi- 

 radiata, somewhat like Necera radiata, fore-part radiately ribbed. 

 6. Turritella Fuchsi, approaching T. imbricataria, Lamk. 7. Natiea 

 Ottilice, a small and rather indifferent form, resembling N~. Woodi. 

 8. Cheilostoma Hosthomi, like some species from the lowermost 

 Belgian Eocenes. 9. Melanopsis ? Beineri ; the genus uncertain, 

 most of the specimens being crushed. 10. Cerithium Canavali, very 

 near to C. lunatum, Mstr. 11. Nautilus Seelandi, very broad and in- 

 flated. 12. Myliobates Haueri, near to If. goniopleurus, Agass. 



III. — The Book-salt Formation of Wieltczka, Galicia. By J. 



Niezwiecki. Imp. Geol. Instit. Vienna, Meeting 17th Novem- 

 ber, 1885. Communicated by Count Marschall, F.C.G.S. 



THE borings, undertaken in order to explore the supposed west- 

 ward continuation of the Salt beds, gave the following results. 

 An alluvial deposit, 1^- meter thick, covers a grey clay (partly a 

 marl), with seams of micaceous sand, and boulders of compact marl. 

 This clay continued to the depth of 204^ meters, and contained some 

 few stalks and leaves of plants, with Foraminifera (Globigerina, Poly- 

 morphina, and Truncatulina) . This may be regarded as an eastward 

 continuation of the sulphuriferous deposits of Swoszowice, which 

 likewise has terrestrial plant-remains and marine shells. Coarser 

 sand, or friable sandstone, with thin intercalations of claj', fibrous 

 gypsum, and pieces of anhydrite, continues from 204^ to 210 meters 

 depth. Between this and the present depth of the bore (227| 

 meters), saliferous clay, with scattered granular rock-salt, gypsum, 

 and anhydrite, was pierced. Water drawn from this depth was 

 highly saturated with salt. 



IV. — Geological Formations in Afghanistan. By C. L. Gries- 

 bach, F.G.S. Imper. Geol. Inst. Vienna, Meeting 3rd Novem- 

 ber, 1885. Communicated by Count Marschall, F.C.G.S. 

 1 PLIOCENE. Sandstones and loose sands, with great deposits of 

 i loess, and badly-preserved Mammalian remains. 2. Pliocene, 

 lied and light-coloured clays, with beds of loess and gypsum. Nos. 

 1 and 2 may be equivalent to the Manchhar and Siwalik Formation 



