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CONTENTS.

PAGE

Problem first propounded to the Author in a Quarry-The Quarry's Two

Deposits, Old Red Sandstone and Boulder Clay-The Boulder-Clay
formed while the Land was subsiding—The Groovings and Polishings of
the Rocks in the Lower Parts of the Country evidences of the fact-Sir
Charles Lyell's Observations on the Canadian Lake District-Close of
the Boulder-Clay Record in Scotland-Its Continuance in England into
the Pliocene Ages—The Trees and Animals of the Pre-Glacial Periods-
Elephants' Tusks found in Scotland and England regarded as the Re-
mains of Giants-Legends concerning them -Marine Deposits beneath

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44-80

LECTURE THIRD.

The Poet Delta (Dr. Moir)-His Definition of Poetry–His Death-His

Burial-place at Inveresk-Vision, Geological and Historical, of the Sur-

rounding Country-What it is that imparts to Nature its Poetry-The

Tertiary Formation in Scotland-In Geologic History all Ages contem-

porary-Amber the Resin of the Pinus succinifer- A Vegetable Produc-

tion of the Middle Tertiary Ages—Its Properties and Uses—The Masses

of Insects enclosed in it-The Structural Geology of Scotland—Its Trap

Rock-The Scenery usually associated with the Trap Rock-How formed

-The Cretaceous Period in Scotland-Its Productions-The Chalk De-

posits-Death of Species dependent on Laws different from those which

determine the Death of Individuals, The Two great Infinites,

81-120

LECTURE FOURTH,

The Continuity of Existences twice broken in Geological History—The three

great Geological Divisions representative of three independent Orders of

Existences--Origin of the Wealden in England-Its great Depth and

high Antiquity—The question whether the Weald Formation belongs to

the Cretaceous or the Politic System determined in favour of the latter

by its Position in Scotland-Its Organisms, consisting of both Salt and

Fresh-Water Animals, indicative of its Fluviatile Origin, but in proximity

to the Ocean—The Outliers of the Weald in Morayshire - Their Organisms

-The Sabbath-Stone of the Northumberland Coal Pits-Origin of its

Name-The Framework of Scotland-The Conditions under which it

may

have been formed–The Lias and the Oolite produced by the last great

Upheaval of its Northern Mountains—The Line of Elevation of the Low-

land Counties-Localities of the Oolitic Deposits of Scotland-Its Flora

and Fauna-History of one of its Pine Trees-Its Animal Organisms-

A Walk into the Wilds of the Oolite Hills of Sutherland,

121-152

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BRAAMBURY, QUARRY OF, UPPER OOLITE, SUTHERLAND,

257

BREWSTER, SIR DAVID, ON THE CUTTLE-FISH AND BELEMNITE,

309

CAUTION TO GEOLOGISTS ON THE FINDING OF REMAINS,

281

CLAY-BED OF THE NORTHERN SUTOR, LESSON TO YOUNG GEOLO-

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CONGENERS OF THE CUTTLF-FISH, BELEMNITE, ETC.,

295

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