358 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [May 19, 



conducted to a fine section by M. E. Joly, Advocate, well known for 

 his antiquarian researches. Beds of clay, alternating with greenish 

 sands and brick- earth, cover the solid layers of Nummulite-limestone 

 to a thickness of 1 00 feet, and among them occur indurated siliceous 

 sandstones similar to those in Mont Panisel, before-mentioned, with 

 chalcedonic casts of shells. Pinna margaritacea being very abundant. 

 The following fossils, collected by myself, or given me by M. Joly, are 

 from this place or from EUezelles near Renaix : — 



Turbinolia sulcata, Lamk. Natica, allied to N. Hantoniensis, Sow. 



Soleu, Natica. 



Corbula, cast. Fusus longaevus, Lamk. 



Tellina donacialis ?, Edwards. Pleurotoma. 



Tellina. Rostellaria fissurella, Lamk. 



Cytherea, near C. obliqua, Desh. Cassidaria carinata, Lamk. 



, near C. nitidula ?, Lamk. Voluta luctator ?, Sow. 



Cardita planicostata, Lamk. , two other species. 



Nucula margaritacea, Lamk. Terebellura. 



Pinna margaritacea, Lamk. Cyprsea. 



Pecten. Nautilus, cast. 



Ostrea flabellula, Lamk. Cancer Leachii ?, Desm. 



Turritella imbricataria, Lamk. Xanthopsis, M'Coy. 



At Kraye (or Craye), to the N.W. of Renaix, on a road leading 

 from Renaix to Berchem on the Scheldt, I found sands with dispersed 

 specimens of a variety of Nummulites planulatus, about 150 feet 

 higher in the series than the solid beds at the farm of Arabic before - 

 mentioned. These upper grey sands with green grains contain in 

 great abundance an orbicular variety of Cardita planicostata^ with 

 Cardium porulosumy Corbula, &c. 



At Audenaerde I observed beds similar to those of Renaix and Mont 

 Panisel, the Pinna margaritacea being abundant in cherty beds which 

 are sometimes used for pavement. 



[4.] Courtray. 



Three miles south of Courtray I found a tertiary clay, extensively 

 worked for brick-making, which abounded in Nummulites planulatus 

 in a very perfect state of preservation. I was directed to this region 

 as likely to afford fossil remains by M. Dumont. The clay of Cour- 

 tray evidently belongs to the Lower Nummulitic division, E. 3 of 

 Table I. p. 279. 



The fossils which accompanied the Nummulites, including a Tur- 

 ritella and some others, were too imperfect to admit of being speci- 

 fically determined. 



[5.] Ghent. 



About three miles south of Ghent, at the country-house of M. F. 

 Loozberg, an artesian well had been sunk to the depth of 70 metres 

 at the time of my visit. The upper 35 metres consisted of sandy and 

 clayey glauconites, with Nummulites planulatus dispersed through 

 them at several levels. In examining this Glauconite Mr. Rupert 

 Jones has lately found a few specimens of two species of Entomo- 

 straca, viz. Cythere angulatopora, Bosq., and Cytherella Munsterij 



