318 



Geology of Wiltshire. 



Fossils feom the 

 Ammonites Murdusonice. Sow. 

 ,, concavus. Sow. 



,, Parkinsoni. Sow. 



„ falcifer. Sow. 



,, subradiatus. Sow. 



Nautilus truncatus. Sow. 

 ,, lineatus. Sow. 

 ,, obesus. Sow. 

 Belemnites abbreviatus. Miller. 

 ,, elongatus. Miller. 



,, sulcatus. Miller. 



Pleurotomaria punctata. Sow. 

 ,, ornata. Def. 



,, elongata. Sow. 



and casts of many other species. 

 Cirrus nodosus. Sow. 

 Chemnitzia lineata. Sow. 



, , ornata. 

 Natica casts. 

 Nerintea casts. 

 Myacites dilatatus. Buck. 

 ,, Jurassi. Brong. 

 Greslya abducta. Phil. 

 Cucullsea oblonga. Sow. 

 Pholadomya fidicula. Sow. 

 ,, ambigua. Sow. 



Modiola gibbosa. Sow. 

 ,, Jurensis. Bronn. 



Inferior Oolite, g^. 

 Astarte cxcavata. Sow. 



,, elegans. Sow. 

 Trigonia striata. Sow. 



,, costata. Park. 

 Gervilia Hartmani. Goldf. 

 Ceromya concentrica. Sow. 

 Mj^oconclia crassa. Sow. 

 Pecten lens. Sow. 

 Lima gibbosa. Sow. 



,, proboscidea. Sow. 

 Pinna cuneata. Sow. 

 Avicula complicata. Buck. 

 Gryphasa Buckmani. Mor. 

 Ostrava Marshii. Sow. 

 ,, gregaria. Sow, 

 Terebratula perovalis. Sow, 



,, globata. Sow. 



,, Buckmani. Dav. 



,, fimbria. Sow. 



Rhynoonella sub-tetrahedra. DaTis. 



,, spinosa. Schloth. 



Hyboclypus agariciformis. Forbes. 

 Holectypus depressus. Lam. 

 Heniipedina Bakeri. Wright. 

 Kucleolites clunicularis. Llhwyd. 

 Pygaster semisulcatus. Phill. 

 Echinus germinans. 

 Serpula socialis. Goldf. 



Fuller's Earth. 



This is a stratum of clay with occasional bands of limestone, 



altogether about 60 feet thick, marked g^. It forms the base of 



the Great Oolite. Sections are very rare, as at the outcrop it is 



generally covered by detritus of Great Oolite, and it is not now 



sought after for fulling purposes. Its position is indicated by 



springs, marshes, and moist ground. In a lane east of the village 



of Slaughterford we get the following sections : — 



Feet. 



1. White marls with occasional stony bands - - - - 25 



2. White and grey limestone and marlstone (Fuller's earth rock) - 10 



3. White and blue calcareous clays with Terebratula perovalis and 



T. 3Iaxillata -------30 



65 



