قراءة كتاب The Rain Cloud or, An Account of the Nature, Properties, Dangers and Uses of Rain in Various Parts of the World
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The Rain Cloud or, An Account of the Nature, Properties, Dangers and Uses of Rain in Various Parts of the World
and winter—means of supplying the earth with rain—rain-clouds—deceptive appearances of clouds—their light and shade—effects of clouds in mountainous countries—ascent of monte pientio—ascent to the peak of teneriffe—grand effects of clouds in the pyrenees—voyage in a balloon through the clouds.
Every season has its own peculiar rains. What can be more refreshing or invigorating than the showers of spring? When the snows of February have disappeared, and the blustering winds of March have performed their office of drying up the excess of moisture, and preparing the earth for fruitfulness, and when the young buds and blossoms of April are peeping forth beneath the influence of the sun, and the trees and hedges are attired in their new robes of tender green, how soon would
all this beauty languish but for the showers of spring! Several dry days, perhaps, have passed, and the wreaths of dust which are raised by the wind show that the earth wants moisture; but before a drop falls there is a general lull throughout all nature; not a leaf is heard to rustle; the birds are mute and the cattle stand in expectation of the refreshing fall. At last the pools and rivulets are “dimpled” by a few soft drops, the forerunners of the general shower. And this shower, unlike the heavier rains of summer, comes stealing on so gently, that the tinkling sound of its fall is heard among the branches of the bursting trees long before it is felt by those who walk beneath their slight shelter. Rapidly does the landscape brighten under the influence of the welcome shower; and as it becomes more rich and extensive, all nature seems to rise up and rejoice. The birds chirp merrily among the foliage; the flowers raise their drooping heads, and the thirsty ground drinks in with eager haste the mellowing rains. All day long, perhaps, does the rain continue to fall, until the earth is fully moistened and “enriched with vegetable life.” At length, towards evening, the sun peeps out from
among the broken clouds, and lights up, by his sudden radiance, the lovely scene. Myriads of rain-drops sparkle like gems beneath his beams; a soft mist that seems to mingle earth and sky gradually rolls away, and “moist, and bright, and green, the landscape laughs around.” Now pours forth the evening concert from the woods, while warbling brooks, and lowing herds, appear to answer to the sound. Such are some of the delightful effects of spring-showers.
In summer, when the heat has been very great, the rain is often ushered in by a thunder-storm, and falls in torrents, which at an earlier season would do harm to the young buds and blossoms of spring; but now the vegetation is strong enough to resist the floods so necessary to maintain moisture in the parched earth. But when the summer has been moderately warm some gentle rains generally fall about midsummer, which, from the frequency of their occurrence about this time, have obtained the name of “Midsummer rains.” These rains are popularly associated with St. Swithin’s Day, as will be noticed in another chapter; but when they fall early, mildly, and in moderate quantity, they operate to a certain extent as a
second spring. “Many of the birds come into song and have second broods; and it is probable that there is a fresh production of caterpillars for their food, or, at all events, a larger production of the late ones than when the rains are more violent and protracted. Many of the herbaceous plants also bloom anew, and the autumn is long and pleasant, and has very many of the charms of a summer, though without any very powerful operation on the productions of nature, further than a very excellent preparation for the coming year, whether in buds, in roots, or in the labours of man. Such a season is also one of plenty, or at all events of excellent quality in all the productions of the soil. The wild animals partake in the general abundance, as that food which is left for them in the fields, after man has gathered in his share, is both more abundant and more nourishing. When there is much moisture from the protracted time and great quantity of the rains, many of those seeds germinate, while in mild seasons they are left as food for the wild animals, chiefly the field-mice and the birds, which again form part of the food of the predatory ones.”
There is something melancholy and depressing
in the rains of autumn and winter, for they bear away the last traces of summer by stripping the trees of the many-coloured leaves, which in mild seasons will continue to adorn the landscape even late in November. The rains of this month, and their effects, have been skilfully sketched by an accurate observer of nature. He says:—
“Now cold rains come deluging down, till the drenched ground, the dripping trees, the pouring eaves, and the torn, ragged-skirted clouds, seemingly dragged downward slantwise by the threads of dusky rain that descend from them, are all mingled together in one blind confusion; while the few cattle that are left in open pastures, forgetful of their till now interminable business of feeding, turn their backs upon the besieging storm, and, hanging down their heads till their noses almost touch the ground, stand out in the middle of the fields motionless, like dead images.
“Now, too, a single rain-storm, like the above, breaks up all the paths and ways at once, and makes home no longer ‘home’ to those who are not obliged to leave it; while it becomes doubly endeared to those who are. What sight, for instance, is so pleasant to the wearied woodman, who
has been out all day long in the drenching rains of this month, as his own distant cottage window seen through the thickening dusk, lighted up by the blazing fagot that is to greet his sure return at the accustomed minute?”
While we watch the effects of the various rains, and their beneficial influence on the earth, there is also much to excite our gratitude and admiration; for among the many beautiful contrivances in creation, none is more remarkable than the means by which the earth is watered and refreshed by rain. The oceans, seas, lakes, and other waters of the earth supply the air with moisture, which, rendered elastic and invisible by the heat of the sun and of the earth, rises to various heights in the atmosphere, where it forms clouds in all their wonderful beauty and variety. These are borne by the winds to places far inland, to which water in sufficient quantity could not come by any other means, and where moisture is most required; and here the water is poured down, not in cataracts and water-spouts, but in the form of drops of various sizes. If the rain-clouds threw down, at once and suddenly, all the water contained in them, not only would vegetation be destroyed by
the force of the fall, but we should be constantly liable to floods and other inconveniences. Clouds also serve to screen the earth from the fierce heat of the sun by day; and, by night, they serve to maintain the heat which would otherwise escape by radiation, and produce great cold even in summer. Clouds thus have great influence in regulating the extremes of heat and cold, and in forming what is called the “climate” of a country. Clouds also supply the hidden stores of fountains and the fresh water of rivers; and, as a pious old divine well remarks, “So abundant is this great blessing, which the most indulgent Creator hath afforded us by means of this