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THE CRUISE OF THE BETSEY.

CHAPTER I.

PREPARATION-Departure-Recent and Ancient Monstrosities-A Free Church Yacht-Down the Clyde-Jura-Próf. Walker's Experiment-Whirlpool near Scarba-Geological Character of the Western Highlands - An Illustration-Different Ages of Outer and Inner Hebrides-Mt. Blanc and the Himalayas "mere upstarts"-Esdaile Quarries - Oban — A Section through Conglomerate and Slate examined - M'Dougal's Dog-stone-Power of the Ocean to move Rocks- Sound of Mull-The Betsey - The Minister's Cabin Village of Tobermory-The "Florida "- Wreck of the Invincible ArmadaGeologic Exploration and Discovery-At Anchor.

THE pleasant month of July had again come round, and for full five weeks I was free. Chisels and hammers, and the bag for specimens, were taken from their corner in the dark closet, and packed up with half a stone weight of a fine soft Conservative Edinburgh newspaper, valuable for a quality of preserving old things entire. At noon on St. Swithin's day (Monday the 15th), I was speeding down the Clyde in the Toward Castle steamer, for Tobermory in Mull. In the previous season I had intended passing direct from the Oölitic deposits of the eastern coast of Scotland, to the Oölitic deposits of the Hebrides. But the weeks glided all too quickly away among the ichthyolites of Caithness and Cromarty, and the shells and lignites of Sutherland and Ross. My friend, too, the Rev. Mr. Swanson, of Small Isles, on whose assistance I had reckoned, was

in the middle of his troubles at the time, with no longer a home in his parish, and not yet provided with one elsewhere; and I concluded he would have but little heart, at such a season, for breaking into rocks, or for passing from the too pressing monstrosities of an existing state of things, to the old lapidified monstrosities of the past. And so my design on the Hebrides had to be postponed for a twelvemonth. But my friend, now afloat in his Free Church. yacht, had got a home on the sea beside his island charge, which, if not very secure when nights were dark and winds loud, and the little vessel tilted high to the long roll of the Atlantic, lay at least beyond the reach of man's intolerance, and not beyond the protecting care of the Almighty. Hẹ had written me that he would run down his vessel from Small Isles to meet me at Tobermory, and in consequence of the arrangement I was now on my way to Mull.

St. Swithin's day, so important in the calendar of our humbler meteorologists, had in this part of the country its alternate fits of sunshine and shower. We passed gaily along the green banks of the Clyde, with their rich flat fields glittering in moisture, and their lines of stately trees, that, as the light flashed out, threw their shadows over the grass. The river expanded into the estuary, the estuary into the open sea; we left behind us beacon, and obelisk, and rock-perched castle;

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and, as the evening fell, we were ploughing the outer reaches of the Frith, with the ridgy table-land of Ayrshire stretching away, green, on the one side, and the serrated peaks of Arran rising dark and high on the other. At sunrise next morning our boat lay, unloading a portion of her cargo, in one of the ports of Islay, and we could see the

Irish coast resting on the horizon to the south and west, like a long undulating bank of thin blue cloud; with the island of Rachrin-famous for the asylum it had afforded the Bruce when there was no home for him in Scotland, presenting in front its mass of darker azure. On and away! We swept past Islay, with its low fertile hills of mica-schist and slate; and Jura, with its flat dreary moors, and its farseen gigantic paps, on one of which, in the last age, Professor Walker, of Edinburgh, set water a-boil with six degrees of heat less than he found necessary for the purpose on the plain below. The Professor describes the view from the summit, which includes in its wide circle at once the Isle of Skye and the Isle of Man, as singularly noble and imposing; two such prospects more, he says, would bring under the eye the whole island of Great Britain, from the Pentland Frith to the English Channel. We sped past Jura. Then came the Gulf of Coryvrekin, with the bare mountain island of Scarba overlooking the fierce, far-famed whirlpool, that we could see from the deck, breaking in long lines of foam, and sending out its waves in wide rings on every side, when not a speck of white was visible elsewhere in the expanse of sea around us. And then came an opener space, studded with smaller islands,mere hill-tops rising out of the sea, with here and there insulated groups of pointed rocks, the skeletons of perished hills, amid which the tide chafed and fretted, as if laboring to complete on the broken remains their work of denudation and ruin.

The disposition of land and water on this coast suggests the idea that the Western Highlands, from the line in the interior, whence the rivers descend to the Atlantic, with the islands beyond to the outer Hebrides, are all parts of one great mountainous plane, inclined slantways into the sea. First, the long withdrawing valleys of the main land, with their brown mossy streams, change their character as

they dip beneath the sea-level, and become salt-water lochs. The lines of hills that rise over them jut out as promontories, till cut off by some transverse valley, lowered still more deeply into the brine, and that exists as a kyle, minch, or sound, swept twice every tide by powerful currents. The sea deepens as the plain slopes downward; mountainchains stand up out of the water as larger islands, single mountains as smaller ones, lower eminences as mere groups of pointed rocks; till at length, as we pass outwards, all trace of the submerged land disappears, and the wide ocean stretches out and away its unfathomable depths. The model of some Alpine country raised in plaster on a flat board, and tilted slantways, at a low angle, into a basin of water, would exhibit, on a minute scale, an appearance exactly similar to that presented by the western coast of Scotland and the Hebrides. The water would rise along the hollows, longitudinal and transverse, forming sounds and lochs, and surround, island-like, the more deeply submerged eminences. But an examination of the geology of the coast, with its promontories and islands, communicates a different idea. These islands and promontories prove to be of very various ages and origin. The outer Hebrides may have existed as the inner skeleton of some ancient country, contemporary with the main land, and that bore on its upper soils the productions of perished creations, at a time when by much the larger portion of the inner Hebrides, Skye, and Mull, and the Small Isles, existed as part of the bottom of a wide sound, inhabited by the Cephalopoda and Enaliosaurians of the Lias and the Cölite. Judging from its components, the Long Island, like the Lammermoors and the Grampians, may have been smiling to the sun when the Alps and the Himalaya Mountains lay buried in the abyss; whereas the greater part of Skye and Mull must have been, like these vast mountain-chains of

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