d Boulders--The Boulder _Clach
Malloch_--Its zones of Animal and Vegetable life. 355

CHAPTER VIII.

Imaginary Autobiography of the _Clach Malloch_ Boulder--Its
Creation--Its Long Night of unsummed Centuries--Laid open to light
on a desert Island--Surrounded by an Arctic Vegetation--Undermined
by the rising Sea--Locked up and floated off on an Ice-field--At
rest on the Sea-bottom--Another Night of unsummed Years--The
Boulder raised again above the waves by the rising of the
Land--Beholds an Altered Country--Pine Forests and Mammals--Another
Period of Ages passes--The Boulder again floated off by an
Iceberg--Finally at rest on the Shore of Cromarty Bay--Time and
Occasion of naming it--Strange Phenomena accounted for by
Earthquakes--How the Boulder of Petty Bay was moved--The Boulder of
Auldgrande--The old Highland Paupers--The little Parsi Girl--Her
Letter to her Papa--But one Human Nature on Earth--Journey
resumed--Conon Burying Ground--An aged Couple--Gossip. 375

CHAPTER IX.

The Great Conglomerate--Its Undulatory and Rectilinear
Members--Knock Farril and its Vitrified Fort--The old Highlanders
an observant race--The Vein of Silver--Summit of Knock Farril--Mode
of accounting for the Luxuriance of Herbage in the ancient Scottish
Fortalices--The green Graves of Culloden--Theories respecting the
Vitrification of the Hill-forts--Combined Theories of Williams and
Mackenzie probably give the correct account--The Author's
Explanation--Transformations of Fused Rocks--Strathpetlier--The
Spa--Permanent Odoriferous Qualities of an ancient Sea-bottom
converted into Rock--Mineral Springs of the Spa--Infusion of the
powdered rock a substitute--Belemnite Water--The lively young
Lady's Comments--A befogged Country seen from a
hill-top--Ben-Wevis--Journey to Evanton--A Geologist's
Night-mare--The Route Home--Ruins of Craig house--Incompatibility
of Tea and Ghosts--End of the Tour. 393

CHAPTER X.

Recovered Health--Journey to the Orkneys--Aboard the Steamer at
Wick--Mr. Bremner--Masonry of the Harbor of Wick--The greatest
Blunders result from good Rules misapplied--Mr. Bremner's Theory
about sea-washed Masonry--Singular Fracture of the Rock near
Wick--The Author's mode of accounting for it--"Simpl