574 



Correspondence — Mr. J. E. H. "Peyton* 



forming a projecting lip of land. At this point it is transversely 

 cut through by deep gulleys, excavated by several little rills of 

 water. Further on it again becomes a bank, and sweeps round in a 

 majestic curve past Abbotsbury to Portland. Its independence of 

 the minor configuration of the coast lying between Burton Cliflf and 

 Portland is very remarkable. The seaward slope, whether bank or 

 beach, is in a continuous curve from its two extremes. The Fleet is 

 only the natural consequence of the barriers built on the low lands. 

 Blundbllsands, T. Mellard Eeade, C.E. 



November 11 th, 1873. 



DISCOVERT OF LINGULA 0VALI8 IN THE KIMMERIDGE CLAY AT 

 BOULOGNE-SUR-MER. 

 Sir, — Whilst on a short geological tour abroad early in September, 

 I was fortunate enough to discover a Lingula in the Cliffs near 

 Boulogne ; and on my return home, I gave it to T. Davidson, Esq., 

 F.E.S. He sent information of it to MM. Rigaux and de Loriol (who 

 are publishing a work on the Boulogne fossils), and they both say it 

 has never been discovered (or recorded) before, in the Kimmeridge 

 Clay of Boulogne ; though those cliffs have been searched for years, 

 by French, English, and other geologists ! The shell in question, 

 Lingtda ovalis, occurred in a block of shale, and was a beautiful 

 specimen, quite perfect when I first found it, but it has got damaged 

 since. Mr. Davidson has kindly drawn the following figure for me : 



Lingula ovalis, Sow., Kimmeridge Clay, Boulogne-sur-mer. 

 I also give a rough sketch (from memory) of the place where I 

 found it, for the benefit of geological visitors to Boulogne — the strata 

 are named from M. Eigaux' map. 



Moulin 

 Fort. La Creche Wibert. 



A. Gres a Ammonites gigas. To Boulogne- 



B. Schistes a Thracia depressa. * 



C. Ores a Py gurus, 



D. ("alcaire a Area longirostris. 



* Place where I found the Lingula : in the Bay a few hundred yards south of 

 La Creche point. 

 It is not a little singular that within a fortnight after this discovery, 

 I also found the same shell in the same formation in a core from the 



