Towards The Summit Of One, There Was A White Spot, Which I Should Have Called A Naked Rock, But The Guides, Who Had Better Eyes, And Were Acquainted With The Phenomena Of The Country, Declared It To Be Snow.

It had already lasted to the end of August, and was likely to maintain its contest with the sun, till it should be reinforced by winter.

The height of mountains philosophically considered is properly computed from the surface of the next sea; but as it affects the eye or imagination of the passenger, as it makes either a spectacle or an obstruction, it must be reckoned from the place where the rise begins to make a considerable angle with the plain. In extensive continents the land may, by gradual elevation, attain great height, without any other appearance than that of a plane gently inclined, and if a hill placed upon such raised ground be described, as having its altitude equal to the whole space above the sea, the representation will be fallacious.

These mountains may be properly enough measured from the inland base; for it is not much above the sea. As we advanced at evening towards the western coast, I did not observe the declivity to be greater than is necessary for the discharge of the inland waters.

We passed many rivers and rivulets, which commonly ran with a clear shallow stream over a hard pebbly bottom. These channels, which seem so much wider than the water that they convey would naturally require, are formed by the violence of wintry floods, produced by the accumulation of innumerable streams that fall in rainy weather from the hills, and bursting away with resistless impetuosity, make themselves a passage proportionate to their mass.

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