Folkestone and Hythe Beds.
Atherfield Clay.
Similarity of Conditions causing Reappearance of Species after short Intervals.
Upper Speeton Clay.
Middle Neocomian.
Tealby Series.
Middle Speeton Clay.
Lower Neocomian.
Lower Speeton Clay.
Wealden Formation.
Fresh-water Character of the Wealden.
Weald Clay.
Hastings Sands.
Punfield Beds of Purbeck, Dorsetshire.
Fossil Shells and Fish of the Wealden.
Area of the Wealden.
Flora of the Wealden.


CHAPTER XIX.

JURASSIC GROUP.-- PURBECK BEDS AND OOLITE.

The Purbeck Beds a Member of the Jurassic Group.
Subdivisions of that Group.
Physical Geography of the Oolite in England and France.
Upper Oolite.
Purbeck Beds.
New Genera of fossil Mammalia in the Middle Purbeck of Dorsetshire.
Dirt-bed or ancient Soil.