Blackwood's Edinburgh Magazine, Volume 65, No. 402, April, 1849. VariousЧитать онлайн книгу.
judgment against his presumption.
The whole surface of the globe gives striking evidence of design, and of design contemplating the service of man. But one of the most remarkable evidences of that design is given in the Mountain Map of the globe. Variety of temperature, the supply of water, and the change of level, are essential to variety of production, to fertility of soil, and to the vigour and health of the human frame – the expedient to meet them all is provided in the mountain districts of the great continents. A mountain chain girdles the whole of the mass of land from the Atlantic to the Sea of Kamchatka. Minor chains, some parallel, some branching from the great northern chain, and some branches of those branches, intersect every region of the globe. The whole bears a remarkable resemblance to the position of the spine in the human frame, with its collateral muscular and venous connexion with the body. An outline view of the mountains of our hemisphere would be strikingly like a sketch of the human anatomy. The general formation of the countries north and south of those chains is early the same – vast plains, extending to the sea, or traversed and closed in by a bordering chain. The great Tartarian desert is a plain extending, under various names, five thousand miles from west to east.
Spain is a country of mountains, or rather a vast table-land, intersected by six ranges of lofty, rugged, and barren hills. Northern Africa is a basin of plains, surrounded by vast ridges. Morocco, Algiers, and Tunis, find in those hills at once their frontiers and their fertility. The Pyrenees form a chain of nearly three hundred miles long, and upwards of fifty broad – a province of mountains, intersected by valleys of romantic beauty and exuberant fertility. But the Alps, from their position between the two most brilliant nations of the Continent – France and Italy – and from the extraordinary series of memorable events of which they have been the theatre, since the earliest periods of European history, are the most celebrated range of mountains in the world. The higher Alps, beginning at the Gulf of Genoa, and extending north and east through the Grisons and the Tyrol, stretch between four and five hundred miles. They then divide into two branches, one of which reaches even to the Euxine. The breadth of the great range is, on an average, a hundred and fifty miles.
The Apennines, another memorable chain, also beginning at the Gulf of Genoa, strike direct through the heart of Italy, and end in Calabria – a line of eight hundred miles. Dalmatia and Albania are knots of hills; Pindus, and the mountains of Northern Greece, are bold offsets from the Eastern Alps.
Among those wonderful arrangements, the table-lands are perhaps the most wonderful. In the midst of countries where everything seemed to tend to the mountainous form, we find vast plains raised almost to a mountainous height, yet retaining their level. This form peculiarly occurs in latitudes of high temperature. The centre of Spain is a table-land of more than ninety-two thousand square miles – one half of the area of Spain.
The country between the two ranges of the Atlas is a table-land, exhibiting the richest products, and possessing the finest climate, of Northern Africa. Equatorial Africa is one immense table-land, of which, however, we can only conjecture the advantages. Whether from the difficulty of approach, the distance, or the diversion of the current of adventure to other quarters of the world, this chief portion of the African continent continues almost unknown to Europeans. The central region is a blank in our maps, but occasional tales reach us of the plenty, the pomp, and even of the civilisation and industry of the table-land. The centre of India is a table-land, possessing, in that region of fire and fever, a bracing air, and a productive, though rugged soil.
The table-lands of Asia partake of the characteristic magnitude which belongs to that mighty quarter of the globe. That of Persia has an area of more than a million and a half of square miles. That of Tibet has an area of six times the extent, with a still greater elevation above the level of the sea – its general altitude being about the height of Mont Blanc, and, in some instances, two thousand feet higher. The mean altitude of the Persian plateau is not above four thousand feet.
We have adverted to those formations of vast elevated plains in the midst of countries necessarily exposed to extreme heat, as one of the remarkable instances of providential contrivance, if we must use that familiar word in such mighty instances of design, for the comfort of animated being. We thus find, in the latitudes exposed to the fiercest heat of the sun, a provision for a temperature consistent with the health, activity, and industry of man. Persia, which, if on the level of the sea, would be a furnace, is thus reduced to comparative coolness; Tibet, which would be a boundless plain of fiery sand, exhibits that sternness of climate which makes the northern Asiatic bold, healthy, and hardy.
If the Tartar ranger over those lofty plains is not a model of European virtue, he at least has not sunk to the Asiatic slave; he is bold, active, and has been, and may be again, an universal conqueror. The same qualities have always distinguished the man of the table-land, wherever he has found a leader. The soldiery of Mysore no sooner appeared in the field, than they swept all Hindostan before them; the Persians, scarcely two centuries since, ravaged the sovereignty of the Mogul; and the tribes of the Atlas, even in our own day, made a more daring defence of their country, than all the disciplined forces of the Continent against Napoleon.
The two most remarkable ranges of Asia are, the Caucasus, extending seven hundred miles from west to east, with branches shooting north and south; and the Himalaya, a mountain chain of nearly three thousand miles in length, uniting with the Hindoo Coosh and the mountains of Assam. This range is probably the loftiest on the globe, averaging eighteen thousand feet – several of the summits rising above twenty-five thousand. Many of the passes are above the summit of Mont Blanc, and the whole constitutes a scene of indescribable grandeur, a throne of the solitary majesty of Nature.
But, another essential use of the mountain chains is their supply of water – the fluid most necessary to the existence of the animal and vegetable world, – and this is done by an expedient the most simple, but the most admirable. If the surcharge of the clouds, dashing against the mountain pinnacles, were to be poured down at once, it must descend with the rapidity of a torrent, and deluge the plains. But, those surcharges first take a form by which their deposit is gradual and safe, and then assume a second form, by which their transmission to the plains is gradual and unintermitting. They descend on the summits in snow, and are retained on the sides in ice. The snow feeds the glacier; the glacier feeds the river. It is calculated that, without reckoning the glaciers of the Grisons, there are fifteen hundred square miles of glacier in the Alps alone, from a hundred to six hundred feet deep. The glacier is constantly melting, from the mere temperature of the earth; but, as if this process were too slow for its use, it is constantly moving downwards, at a certain number of feet a-year, and thus bringing the great body of ice more within the limit of liquefaction. All the chief rivers of Europe and Asia have their rise in the deposits of the mountain glaciers.
In addition to all these important uses, the mountains assist in forming the character of man. The mountaineer is generally free from the vices of the plain. He is hardy and adventurous, yet attached to home; bold, and yet simple; independent, and yet unambitious of the wealth or the distinctions of mankind. Whether shepherd or hunter, he generally dies as he lived; and, though daring in defence of his hills, he has seldom strayed beyond them for the disturbance of mankind. The Swiss may form an exception; but their hireling warfare is not ambition, but trade. Their nation is pacific, while the individuals let themselves out to kill, or be killed. The trade is infamous and irreligious, offensive to human feeling, and contrary to human duty; but it has no more reference to the habits of the mountaineer than the emigration to California has to the habits of the clown of Massachusets; the stimulant only is the same – the love of gold.
We have adverted to the mountain system of the globe, from its giving a remarkable illustration of the Divine expediency. We judge of power by the magnitude of its effects, and of wisdom by the simplicity of its means. In this instance the whole of the results seem to arise from the single and simple act of raising portions of the earth's surface above the general level. Yet from this one act, what a multitude of the most important conditions follow! – variety of climate, variety of production, the temperature of Europe introduced into the tropics, health to man and the inferior animals, the irrigation of the globe, the defence of nations, and the actual enlargement of the habitable spaces of the globe, by the elevated surface of the hills – not to mention the beauty and sublimity of the landscape, which depend wholly on the colours, the