28 THE MEDALS OF CREATION. '  Caap. II, 
1. Cornbrash—a coarse shelly limestone. 
2. Forest marble ; concretions of fissile arenaceous 
limestone—coarse shelly oolite—sand, grit, 
and blue clay. 
3. Great oolite—calcareous oolitic limestone and 
freestone; reptiles, corals, &¢., upper beds 
Gloucestershire, full of shells. 
Oxfordshire, : slate ;—terrestrial plants, insects, rep- 
Lower Oolite 
of 
tiles, Mammalia. 
4. Fuller's earth beds ;—marls and clays, with ful- 
ler’s earth—sandy limestones and shells. 
5. Inferior oolite—coarse limestone —conglome- 
rated masses of terebratule and other shells— 
ferruginous sand, and concretionary blocks of 
sandy limestone, and shells. 
and 
Northamptonshire 
= 
. Shelly limestones—alternation of sandstones, 
shales, and ironstone ; land-plants. 
. Ferruginous limestone, with carbonized wood 
and shells. 
3. Sandstone and shale ; with two beds of coal. 
1 
Lower Oolite, 
of Brora 
in Scotland. 
bo 
- Cornbrash—a provincial term for a bluish grey 
rubbly limestone, with intervening layers of 
clay. 
2. Sandstones and clays, with land-plants, thin 
beds of coal and shale—calcareous sandstone 
and shelly limestone. 
. Sandstone — often carbonaceous, with clays; 
coal-beds, and iron-stone, with remains of vege- 
tables. 
4. Limestone ; ferruginous and concretionary sands. 
Lower Oolite 
of the 
Yorkshire coast. 3 
Obs.—The difference observable between the lower beds of the 
Oolite in the midland counties, and those of Yorkshire and Scotland, 
is a fact of considerable interest. The fluvio-marine accumulations 
of vegetable matter in the state of coal, with the remains of land- 
plants at Scarborough and Brora, together with the presence of 
insects, fresh-water crustaceans, mammalia, and terrestrial plants, in 
the Stonesfield slate, attest the existence of neighbouring land, and 
the action of rivers and currents. 
Tue Lias. (Wond. p. 521). A series of clays, shales, 
and limestones, with marine shells, cephalopoda, crinoidea, 
(alte ae ee, ee 
Sef fe 
