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what is extraordinary; and yet it is not in tie broad and
"The chasm of sky above my head
And, in his American Notes, I remember Dickens notices the
X deck, looking not at, but through the sky. And if you look intensely at the pure blue of a serene sky, you will see that there is a variety and fulness in its very repose. It is not flat dead color, but a deep, quiverings transparent body of penetrable air, in which you trace or imagine short, falling spots of deceiving light, and dim shades, faint, veiled vestiges of dark vapor.
It seems to me that in the midst of the material nearness of the heavens God means us to acknowledge His own immediate presence as visiting, judging, and blessing us. "The earth shook, the heavens also dropped, at the presence of God." "He doth set his bow in the cloud," and thus renews, in the sound of every drooping swathe of rain, his promises of everlasting love. "In them hath he set a tabernacle for the sun ;" whose burning ball, which without the firmament would be seen as an intolerable and scorching circle in the blackness of vacuity, is by that firmament surrounded with gorgeous service, and tempered by mediatorial ministries; by the firmament of clouds the golden pavement is spread for his chariot wheels at morning; by the firmament of clouds the temple is built for his presence to fill with light at noon ; by the firmament of clouds the purple veil is closed at evening round the sanctuary of his rest; by the mists of the firmament his implacable light is divided, and its separated fierceness appeased into the soft blue that fills the depth of distance with its bloom, and the flush with which the mountains burn as they drink the overflowing of the dayspring. And in this taber nacling of the unendurable sun with men, through the shadows of the firmament, God would seem to set forth the stooping of His own majesty to men, upon the throne of the firmament. As the Creator of all the worlds, and the Inhabiter of eternity, we cannot behold Him; but as the Judge of the earth and the Preserver of men, those heavens are indeed His dwelling place. "Swear not, neither by heaven, for it is God's throne nor by the earth, for it is his footstool." And all those passings to and fro of fruitful shower and grateful shade, and ill those visions of silver palaces built about the horizon, and voices of moaning winds and threatening thunders, and glories of colored robe and cloven ray, are but to deepen in our hearts the acceptance, and distinctness, and dearness of the simple words, " Our Father, which art in heaven."
The first and most important character of clouds, is depen, dent on the .different altitudes at which they are formed, The atmosphere may be conveniently considered as divided into three spaces, each inhabited by clouds of specific character altogether different, though, in reality, there is no distinct limit fixed between them by nature, clouds being formed at every altitude, and partaking, according to their altitude, more or less of the characters of the upper or lower regions. The scenery of the sky is thus formed of an infinitely graduated series of systematic forms of clouds, each of which has its own region in which alone it is formed, and each of which has specific characters which can only be properly determined by comparing them as they are found clearly distinguished by intervals of considerable space. I shall therefore consider the sky as divided into three regions—the upper region, or region of the cjrrus; the central region, or region of the stratus; the lower region, or the region of the rain-cloud.
The clouds which I wish to consider as included in the up. per region, never touch even the highest mountains of Europe, and may therefore be looked upon as never formed below an elevation of at least 15,000 feet; they are the motionless mul titudinous lines of delicate vapor with which the blue of the open sky is commonly streaked or speckled after several days of fine weather. I must be pardoned for giving a detailed description of their specific characters, as they are of constant occurrence in the works of modern artists, and I shall have occasion to speak frequently of them in future parts of the work. Their chief characters are— _ First, Symmetry: they are nearly always arranged in some definite and evident order, commonly in long ranks, reaching sometimes from the zenith to the horizon, each rank composed of an infinite number of transverse bars of about the same length, each bar thickest in the middle, and terminating in a traceless vaporous point at each side; the ranks are in the direction of the wind, and the bars of course at right angles to it. The groups of fine, silky, parallel fibres, terminating in a plumy sweep, are vulgarly known as "mares' tails." P .~ Secondly, Sharpness of Edge: The edges of the bars of the upper clouds which are turned to the wind are often the sharpest which the sky shows; no outline whatever of any other kind of cloud, however marked and energetic, ever ap. proaches the delicate decision of those edges.
Thirdly, Multitude: The delicacy of these vapors is sometimes carried into an infinity of division. Nor is nature con. tent with an infinity of bars or lines alont—each bar is in its turn severed into a number of small undulatory masses, more or less connected according to the violence of the wind. When this division is merely effected by undulation, the cloud exactly resembles sea-sand ribbed by the tide; but when the division amounts to real separation we have the mottled 0i "mackerel" skies.
Fourthly, Purity of Color: The nearest of these jlouds— (hose over the observer's head, being at least three mile? above him, and nearly all entering the ordinary sphere of vision, farther from him still,—their dark sides are much grayer and cooler than those of other clouds, owing to their distance. They are composed of the purest aqueous vapor, free from all foulness of earthy gases, and of this in the lightest and most ethereal state in which it can be, to be visible. Farther, they receive the light of the sun in a state of far greater intensity than lower objects, the beams being transmitted to them through atmospheric air far less dense, and wholly unaffected by mist, smoke, or any other impurity. Hence their colors are more pure and vivid, and their white less sullied than those of any other clouds.
Lastly, Variety: Variety is never so conspicuous, as when it is united with symmetry. The perpetual change of form in other clouds, is monotonous in its very dissimilarity, nor is difference striking where no connection is implied; but it through a range of barred clouds, crossing half the heaven, all governed by the same forces and falling into one general form, there be yet a marked and evident dissimilarity between each member of the great mass—one more finely drawn, the next more delicately moulded, the next more gracefully bent—each broken into differently modelled and variously numbered groups, the variety is doubly striking, because contrasted with the perfect symmetry of whicb it forms a part.
Under all, perhaps the massy outline of some lower cloud moves heavily across the motionless buoyancy of the uppei lines, and indicates at once their elevation and their repose.
A fine and faithful description of these clouds is given 1>j Wordsworth in "The Excursion."
"But rays of light