Relation of the deep red stone of Cromarty to the Ichthyolite Beds of the System--Ruins of a Fossil-charged Bed--Journey to Avoch--Red Dye of the Boulder-clay distinct from the substance itself--Variation of Coloring in the Boulder-clay Red Sandstone accounted for--Hard-pan how formed--A reformed Garden--An ancient Battle-field--Antiquity of Geologic and Human History compared--Burn of Killein--Observation made in boyhood confirmed--Fossil-nodules--Fine Specimen of _Coccosteus decipiens_--Blank strata of Old Red--New View respecting the Rocks of Black Isle--A Trip up Moray and Dingwall Friths--Altered color of the Boulder-clay--Up the Auldgrande River--Scenery of the great Conglomerate--Graphic Description--Laidlaw's Boulder--_Vaccinium myrtillus_--Profusion of Travelled 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.