10 
THK GEOLOGIST. 
Serpula vertehralis. 
Astarte sinuata (Bean). 
a larger species. 
Nucula ovata. 
suhrecurvum. 
Cucullea. 
Gryphcea sinuata. 
Pecten (nndescribed). 
Ammoiiites quadrifidus. 
cavaticus. 
9. An impure micaceous sandy clay, containing many nodules, 
and numerous fragments of Ammonites and Belerauites ; apparently 
the detritus of a previous deposit. It also contains many ribs and 
vertebi'se of Saurian animals 5 feet. 
In this bed we find — 
Pholadomya decussata. 
My a (?) depressa. 
Cytherea plana. 
Inoceramus concentricus. 
Terehratula subundata. 
Avicula multicostata. 
Eostellaria Parkinsoni. 
Pleurotomaria (undescribed). 
10. A clay similar to 7, but of a higher colour, containing - 
Turbo j^ulcJierrimus. 
Cerithium, n. s. 
Nucula ovata. 
Serpula vertehralis. 
Belemnites jaculum. 
B. subrecurvum. 
At its base is a thin pyritic layer, rich in beautiful Ammonites. 
Ammonites cur rindus. ^. rp^aZi's (Bean, MS.). A. fiircellatus. 
Thickness 4 feet. 
11. A band similar to 9, with similar fossils. Thickness . 2 feet. 
12. A strong band of blue clay, with a few imperfect fragments of 
Ammonites 3 feet. 
13. A bed of whitish claystone, containing a species of Astacus (not 
in nodules) and two very well marked distinct species of Ammonites, — 
A. mu7iitus (Bean, MS.), and a species in which the costse of the outer 
whorl are so deeply divided as to cut half through the whorl. 1 foot. 
1 4. Another band containing compressed flattened casts of bivalves, 
all imperfect, and Ammonites marginatus 4 feet. 
15. The great band of Hamites, comprising II. maximus and kindred 
forms, sometimes free, when they are generally crushed except the last 
chamber, representing about half a whorl ; often in nodules, and then 
better preserved 1^ feet. 
16. Another bed of Hamite-like Cephalopods ; not the same as the 
last ; comprising C'riocera.'i Beanii and kindred forms, often of immense 
size 3 feet. 
