4 
v 
FIG * 
5 Voiuta spinosa 
6 Voiuta 
7 Cerithium 
8 Large Shark’s tooth 
9 Small do. 
10 Pectunculus decussatus 
1 1 Ammonites communis 
12 Calyptrea. Lam. 
13 Crab 
Barton. 
- Bognor. 
Woolwich. Bracklesham Bay. 
- Sheppey. Highgate, 
Highgate. 
- Highgate. 
- Happisburgh. 
Barton Cliff. 
Highgate. Sheppey. 
SITES OF LONDON CLAY. FOSSILS. 
Bognor 
Selsea Bill 
Stubbington 
Ryde, Isle of Wight 
Muddiford 
Barton and Hordwell Cliffs 
Alum Bay 
Emsworth 
Pagham 
Newhaven Castle 
Harwich 
Sheppey. 
Bexley Heath. 
Woolwich. 
Highgate. 
Brentford. 
Richmond. 
LONDON CLAY.— Sowerby’s Mineral Conchoiogy. 
Fusus Longaevus, Tab. 63. Barton and Hordwell Cliffs. Muddiford. 
Vivipara lenta, Tab. 31. Fig. 3. Barton and Hordwell Cliffs. 
Nautilus Imperialism Tab. 1. Highgate. Brentford. Minster Cliffy Isle of Sheppey. 
Modiola elegans, Tab. 9. Bognor. Highgate Richmond. 
Venericardia planicosta, Tab. 50. Bracklesham Bay, 
Teredo antenautae. Sheppey. 
Highgate. 
Regent’s Canal. 
Croydon Canal. 
Sowerby’s 'Mineralogy . — Tab. 14. Pag. 33. 
Argilla Marga, containing shells. Streatham, in Surry. 
The Fossil shells of the Southern portion of this Clay, were first regularly described by 
Brander. 
Those of the district round London, many years since excited much curiosity, from the 
great quantity turned up in digging the foundation of a house in Hanging Wood, near 
Woolwich. 
They have, also, been found in sinking various wells around the Metropolis, but the recent 
excavations for a tunnel through Highgate Hill, brought them most into notice. 
