CHAPTER VII.

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