Ice plant

“ Thus, by forces seemingly antagonistic and destructive, Nature accomplishes her beneficent designs—now a flood of fire, now a flood of ice, now a flood of water; and again in the fullness of time an outburst of organic life—forest and garden, with all their wealth of fruit and flowers, the air stirred into one universal hum with rejoicing insects, a milky way of wings and petals, girdling the newborn mountain like a cloud, as if the vivifying sunbeams beating against its sides had broken into a foam of plant-bloom and bees. ”

“ They bud, if I may so express it, with the first sharp breath of winter, casting their fragile tendrils into a hundred delicate forms wherever a suspicion of humidity can be hardened with sufficient regularity and force. Upon porous young ice, adjacent to open water, is the garden spot for these curious growths. They give the finishing touch of harmony to the rough outline of the frowning cliffs of ice. They gleam from the miniature ice mountains. They appear as sparkling flowers upon the black sheets of young ice, and convert the cold monotony of the pack into a glistening field of beauty. ”

“ The tumbling and turning of the water at rapid shoals materially assists the growth of ice at points below where the current grows gentle. Streams of this character, whose beds are free from accumulations of vegetable mold, or other sources which generate gases, produce clear and sparkling ice of greater thickness than is found on still ponds or lakes in the same vicinity, and exposed to the same temperature. ”

“ Viewed from an eminence on the shore, a pretty and engaging scene is often presented at an ice house in the country, during the harvest. The clear sunlight flooding the quiet landscape discloses here and there a snug farmhouse sheltered among the hills, and surrounded with trees and shrubs, rivaling, in their soft downy draperies of spotless white and brilliant pearls, their vernal beauty when joyous spring has clothed their boughs with fragrant blossoms and emerald leaves. The broad stream or lake, ice-locked and still, stretches away to the distance, a level and unbroken plain ”

“ The night being calm, the water gets cool below 32 degrees, but then a breeze springing up the water becomes agitated, precipitation takes place, and the plants serving as nuclei become immediately clothed with this spongy ice, and the sun shining next morning imparts so much warmth to the plants that the ice thaws which is in contact with them, and rises to the surface. Of course if the sun does not shine next morning, and the frost continues, the plants may be clothed with ice for a long time. ”

“ Photograph No. 136 shows how individual ice flowers hamper each other in growth; that the points reaching out into clear water grow and draw to themselves with greater freedom the water molecules, while the points intruded upon or crowded out by other crystals or flowers, cease to grow, and do not interfere with the growth of others.
Nos. 137 and 138 are still other forms of ice-growth, the needle-like, lance-like form which we may frequently observe pushing out from the banks of a small pond or brook. ”

“ This snow ice is white, being very porous and filled with air, and detracts from the quality of the crop, its thickness depending on the depth of snow on the field, amount of water, and the temperature. At the top of this snow ice, where it merges into the17 snow, will be found a stiff, crusty layer, more or less firmly united to the ice below, which adds to the difficulty of removing the snow on top. An inch or two of snow ice will lessen the loss by breakage of cakes, in stowing, and the ice also comes out of the house in better shape, and will stand shipping better. ”

“ The ice crystal-clear beneath our polished steel, as we glided bird-like, swiftly over the polished, mirror-like pond beneath us. What exhilaration and glow we found in the fascinating sport. But how seldom, if ever, did we give a thought to the wonderful formation, and the beauties of that crystal surface beneath our flying feet, or did we dream that every bit of that ice was cemented and joined together in exquisite mosaic-like patterns, formed by countless millions of tiny ice flowers, far too delicate and small to be seen by the naked eye. ”

“ If so, each year the snowfields would grow thicker and broader, connecting the shelves into one ice mass again, lilies and willows entombed, the summer heat failing to rescue them, until the ice at last began to slide, stripping the soil and once more plucking at living rock. ”

“ During zero weather the feathery types thicken to an astonishing degree, more so than the opposite type, or arborescent ice film.
Another type of ice formation, and an interesting one, which in the photograph resembles somewhat a vegetable root or growth, is a form of ice which develops and grows upon and under peaty soil. These singular little ice columns rise as by magic, and form a miniature forest of tiny ice columns; frequently raising upon their tops the soil, stones, etc., to a height of many inches.
191
126. Local storm type
127. ”

“ The weather now determines the lot of the ice dealer. As the cold breezes whistle over the water, stirring it into ripples, and breaking its surface into waves, a wonderful change is rapidly transforming its liquid pearls into flinty diamonds. Gradually the heat in the water is radiated into the air. As fast as the surface water is cooled, it is condensed, and sinks to the bottom, its place being taken by the warmer and lighter water from beneath. ”

“ Thus it comes about that in regions of long-enduring snowfall the ground, though frozen to the depth of a foot or more at the time when the accumulation took place, may be thawed out and so far warmed that the vegetation begins to grow before the protecting envelope of snow has melted away. Certain of the early flowers of high latitudes, indeed, begin to blossom beneath the mantle of finely divided ice. ”

“ Every wave, by contrast, and by some optical effect, nearly black as it approaches, is instantly changed into the loveliest green as it rolls up to the silvery bright ice. And all the adjacent deep is a luminous pea-green. The eye follows the ice into its awful depths, and is at once startled and delighted to find that the mighty crystal hangs suspended in a vast transparency, or floats in an abyss of liquid emerald. ”

“ The Usefulness of Snow.—Snow, as it is well known, is a great impediment to the inroads of frost into anything enveloped by it. A covering of snow on an ice field is a great impediment to the escape of heat from the water, as well as protecting the ice from the direct action of the cold air, and greatly retards the growth of the ice. It is essential to remove this snow as early as practicable, as the ice harvester has always in view a possible thaw or rain, and endeavors to secure his crop at the earliest practicable moment. ”

“ To view the solid phalanxes of icy floes, as they fill the mountain fastnesses and imperceptibly march through the ravines and force their way to the sea, fills one with awe indescribable. The knowledge that the ice is moving from beneath one's feet thrills one with a curious sensation hard to portray. ”

“ The water does not draw the frost from the plants, but before it can freeze it must give out one hundred and forty degrees of latent heat. The flower-room and root-cellar were therefore so much warmer during the night than if the water had not been there. The plants that were nipped probably suffered after the ice became so thick as to check in a great measure the freezing process. ”

“ The ice being broken up, winter at last yields, and 250 the snow melts away, conquered by the sun's gentle warmth; the leaves come back to the trees that were stripped by the cold, the sap-filled bud swells with the tender twig, and the fertile grass, that long lay unseen, finds hidden passages and uplifts itself in the air. ”

“ The air is expelled from the water during freezing, if opportunity is found for it to do so. Unless this is done, the ice is cloudy. Agitation of the water assists the escape of the air; hence it is that ice from running streams is usually clearer and more brilliant than pond or lake ice. An outlet afforded to the land-locked ponds and lakes is often beneficial during ice-making weather. Too rapid a current, however, will retard growth, and a gentle motion diffused over the entire field produces the best results. ”

“ From the foot of the incline leading out into the lake is seen a dark line, which branches out and becomes a large blot on the clear white surface. A closer inspection reveals an animated scene, of men armed with strange weapons attacking, with great vigor, fields of ice, which they detach from the main surface, and on which they navigate the open water, already stripped of its frozen crystals. ”

“ Sometimes when those floating pieces or plates meet with any obstruction in the channel of the river, they accumulate in such quantities as to cover the surface of the water, and become frozen together in one large sheet, but this kind of ice may be always readily distinguished from that produced in the usual way by the action of the cold air on the surface, which is smooth, transparent, and of an uniform texture ”

“ The frost goes deepest in the densely compacted earth, probably because of the density; the fewer the air cells the better the conductor. In fluffy soil, especially in the peaty margins of the pond where the earth granules are large and loose and there is much moisture, freezing produces a singular and beautiful result. The ice seems to crystallize away from the peat in which the water was ensponged, not in a compact body nor yet in feathery crystals, either of which one might expect, but in closely parallel, upright cylinders from the size of a knitting needle to that of a slim lead pencil. ”

“ If it is deep it can be readily handled, by cutting holes through the ice, or tapping the ice field in a number of places; the water, being heavier than the ice, will sink and raise the ice, if it has opportunity of so doing. Tapping should have prompt attention, and the water removed without delay. Even if the water freezes on top, the ice is not of good quality and is not part of the ice below. It forms a layer which is attached to the old ice, but yet is not solidly a part of it, and gives trouble by splitting out in barring off. ”

“ The use of clouds in the formation of rain, is too obvious to need pointing out more particularly. Snow is frozen vapour aggregated by a confused action of crystalline laws, and ice is water, solidified while in its fluid state, by the same crystalline forces. These are bad conductors of cold, and when the ground is covered with snow, or the surface of the soil, or if the water is frozen, the roots or bulbs of plants beneath are protected by the congealed water from the influence of the atmosphere, the temperature of which in northern winters, is usually very much below the freezing point ”

“ THICK ICE IN the winter the pond finds a voice. The great sheet of foot-thick, white ice is like a gigantic disk in a telephone, receiver and transmitter in one, sending and receiving messages between the earth and space. ”

“ If you observe very closely, you will discover that meanwhile, in the little open spaces, between the bolder fern-like designs, more delicate feathery forms are gradually appearing, formations which sometimes resemble fine coral branches. As soon as the water-film ice crystallisations are completed they are closely followed by the true frost crystals, which form upon the various dry places upon the glass, delicate lines and stars and also in a thin, dew-like deposit, which rapidly freezes, and assumes a granular, snow-like form. ”

“ The term icebergs has commonly been applied to those immense bodies of ice situated on the land, ‘filling the valleys between the high mountains,’ and generally exhibiting a square perpendicular towards the sea. They recede backward inland to an extent never explored. Martin, Crantz, Phipps, and others, have described those wonders of nature, and all agree as to their manner of formation, in the congelation of the sleet and rains of summer, and of the accumulated snow, partly dissolved by the summer sun, which, on its decline, freezes to a transparent ice. ”

“ As the ice is taken from the house, the covering of sawdust should be kept in place over the ice as far as possible. If58 the space over the ice is sealed up, the air, being above the freezing point, becomes saturated with moisture, which settles upon the ice, softening and melting it. When the outside air is cooler than that over the ice or in the loft, the moist air is driven out, if the ventilators are open. ”

“ The expanding, shearing, breaking force of forming ice, the constant cutting of emery-edged running water, and the undermining thaw of spring sent thundering downward with ten thousand varying echoes a half-million tons of snow, ice, and stones. ”

“ While the weather is clear and cold, and the colder and clearer the better, all goes well with the growing crop as slowly the water yields itself into its crystal bonds, and the domain of the clear, solid ice creeps downward inch by inch. But this condition of affairs, quite ideal from the standpoint of the ice-farmer, is apt in this region to be evanescent. If the grip of the cold relaxes by day, the formation of ice may stop, and even a film of that already made may melt away in the water beneath ”

“ Summer and winter the snow is precipitated upon these mountains, and from time to time the heat of the sun's rays softens the snow, when by its great weight it packs more closely together until it is, in many cases, formed into solid ice-cakes. If we take a quantity of snow or a quantity of granulated ice and put it under a sufficient pressure we can produce clear solid ice, and it is by this process that ice is formed out of the snow and hail that falls continually upon the tops of these glacial mountains. ”