XX. 
CONTENTS. 
qualities of the different sorts.—Bent and waved slate.—Junction 
and mixture of slate and limestone.—Insulation of lime in slate, and 
vice versa of slate in lime,—their alternations.—Our slate taken ag¬ 
gregately is fossiliferous.—Considerations relative to our slate fos¬ 
sils ;—their order of frequency and characters.—These primitive 
animals have the nearly common character of consisting of parallel 
lines.—Description of the Grauwacke rock,—its soil,—depth of soil 
always a desideratum to prevent scorching,—power of trees in fixing 
themselves on any kind of rock.—Limerocks of South Devon, their 
characters, positions and connexions.—Fossils.—Magnesian lime¬ 
stone of Yealmpton, &c.—Spar, &c.—Veins of iron in limerock.— 
Table of the genera of fossils in our strata,—general remarks on 
the same,—their distribution in the strata,—order of frequency of 
occurrence of the various classes of fossils .—Sandstones of South 
Devon, their positions, relations, uses and characters,—their fossils 
similar to those of the lime and slate,—the three strata were contem¬ 
poraneously deposited,—their blendings,—impropriety of classifying 
rocks according as they are fossiliferous and non-fossiliferous.— 
Theories of local geology though separate, may be conformed in 
some measure to general results obtained as regards the whole 
earth.—Conjectures as to the mode in which our three fossiliferous 
rocks were deposited.—Connected statement of reasons for consider¬ 
ing the three fossiliferous rocks ofcoetaneous deposition.—Reasons 
why our limerocks were not formedby coral insects.—This district did 
not take part in geological actions for some space of time after the 
occurrence of these rocks.—Conglomerate pebbles.—Theory of pro¬ 
gression.—The Deluge did not form or alter materially our hills.— 
Peculiar construction of some of our slate hills.—Occurrence of the 
Mosaic flood .—Different sorts ofClay found with us.—Consequences 
of the Deluge depicted.— Vallies of denudation.—“ Diluvium” 
described and separated from ancient beach.—Facts which might 
be used to support the theory of consecutive deposition of our grau¬ 
wacke rocks.—Classification offossils in lime and slate.—Consecutive 
steps in the precipitation of these rocks extended to the beds of each 
sort respectively.—Table of the chief strata of South Devon.—The 
Flood destroyed a series of plants and animals of high endowments. 
Notice of their remains in caves.—Stalagmitic covering.—Oreston 
caves.—Snakes’ eggs.—Caves at Yealmpton.—Notice of the habits 
of antediluvian Hyaenas. Yealm Bridge cave not only an Hyaena’s 
den.—Relations of the antediluvian creatures to each other in regard 
of food.—Particular notice of the cave discovered by the author.— 
Chemical composition of these fossil bones.—Conjecture relative to 
the bones of mice found in the cave.—Cavern at Berry Head.— 
Cavern at Torquay,—human bones, &c. found there, but not cotem¬ 
porary in their deposit with the animal remains.—Communication 
from Mr. Mc’Enery.—Notwithstanding Dr. Buckland’s authority 
ovine remains did occur at Yealm Bridge, as also at Berry Head.— 
Communication from Dr. Buckland.—A new proof adduced against 
Dr. Fleming’s doctrine.—Affinity between antediluvian and post¬ 
diluvian creations.—Theory of altered climate not supported by the 
