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254 bring rain. Those from the north to the southwest are the harbingers of fair weather and a clear sky. The residue of the year from the middle of March to the middle of October, an interval of seven months, is serene and delightful. There is scarcely any rain throughout this time, yet the face of the country is kept fresh and verdant by nightly dews, and occasionally by humid fogs in the mornings. These are not considered prejudicial to health, since both the natives and the whites sleep in the open air with perfect impunity. While this equable and bland temperature prevails throughout the lower country, the peaks and ridges of the vast mountains by which it is dominated, are covered with perpetual snow. This renders them discernible at a great distance, shining at times, like bright summer clouds, at other times assuming the most aerial tints, and always forming brilliant and striking features in the vast landscape. The mild temperature prevalent throughout the country is attributed by some to the succession of winds from the Pacific Ocean, extending from latitude twenty degrees to at least fifty degrees north. These temper the heat of summer, so that in the shade no one is incommoded by perspiration; they also soften the rigors of winter, and produce such a moderation in the climate, that the inhabitants can wear the same dress throughout the year.

The soil in the neighborhood of the sea-coast is of a brown color, inclining to red, and generally poor; being a mixture of clay and gravel. In the interior, and especially in the valleys of the Rocky Mountains, the soil is generally blackish; though sometimes yellow. It is frequently mixed with marl, and with marine substances in a state of decomposition. This kind of soil extends to a considerable depth, as may be perceived in the deep cuts made by ravines, and by the beds of rivers. The vegetation in these valleys is much more abundant than near the coast; in fact, it is in these fertile intervals, locked up between rocky sierras, or scooped out from barren wastes, that population must extend itself, as it were, in veins and ramifications, if ever the regions beyond the mountains should become civilized.