Harper's New Monthly Magazine, Volume 1, No. 2, July, 1850.. VariousЧитать онлайн книгу.
on at every step of its formation. We select this illustration of cheapness as a contrast, in relation to price and extent of demand, to the lucifer match. But it is, at the same time, a parallel in principle. If a globe were not made upon a principle involving the scientific combination of skilled labor, it would be a mere article of luxury from its excessive costliness. It is now a most useful instrument in education. For educational purposes the most inexpensive globe is as valuable as that of the highest price. All that properly belongs to the excellence of the instrument is found in combination with the commonest stained wood frame, as perfectly as with the most highly-finished frame of rose-wood or mahogany.
The mould, if we may so express it, of a globe is turned out of a piece of wood. This sphere need not be mathematically accurate. It is for rough work, and flaws and cracks are of little consequence. This wooden ball has an axis, a piece of iron wire at each pole. And here we may remark, that, at every stage of the process, the revolution of a sphere upon its axis, under the hands of the workman, is the one great principle which renders every operation one of comparative ease and simplicity. The labor would be enormously multiplied if the same class of operations had to be performed upon a cube. The solid mould, then, of the embryo globe is placed on its axis in a wooden frame. In a very short time a boy will form a pasteboard globe upon its surface. He first covers it entirely with strips of strong paper, thoroughly wet, which are in a tub of water at his side. The slight inequalities produced by the overlapping of the strips are immaterial. The saturated paper is not suffered to dry; but is immediately covered over with a layer of pasted paper, also cut in long narrow slips. A third layer of similarly pasted paper – brown paper and white being used alternately – is applied, and then, a fourth, a fifth, and a sixth. Here the pasting process ends for globes of moderate size. For the large ones it is carried farther. This wet pasteboard ball has now to be dried – placed upon its axis in a rack. If we were determined to follow the progress of this individual ball through all its stages, we should have to wait a fortnight before it advanced another step. But as the large factory of Messrs. Malby and Son has many scores of globes all rolling onward to perfection, we shall be quite satisfied to witness the next operation performed upon a pasteboard sphere that began to exist some weeks earlier, and is now hard to the core.
The wooden ball, with its solid paper covering, is placed on its axis. A sharp cutting instrument, fixed on a bench, is brought into contact with the surface of the sphere, which is made to revolve. In less time than we write, the pasteboard ball is cut in half. There is no adhesion to the wooden mould, for the first coating of paper was simply wetted. Two bowls of thick card now lie before us, with a small hole in each, made by the axis of the wooden ball. But a junction is very soon effected. Within every globe there is a piece of wood – we may liken it to a round ruler – of the exact length of the inner surface of the sphere from pole to pole. A thick wire runs through this wood, and originally projected some two or three inches at each end. This stick is placed upright in a vice. The semi-globe is nailed to one end of the stick, upon which it rests, when the wire is passed through its center. It is now reversed, and the edges of the card rapidly covered with glue. The edges of the other semi-globe are instantly brought into contact, the other end of the wire passing through its center in the same way, and a similar nailing to the stick taking place. We have now a paper globe, with its own axis, which will be its companion for the whole term of its existence.
The paper globe is next placed on its axis in a frame, of which one side is a semi-circular piece of metal; the horizon of a globe cut in half would show its form. A tub of white composition – a compound of whiting, glue, and oil is on the bench. The workman dips his hand into this "gruel thick and slab," and rapidly applies it to the paper sphere with tolerable evenness: but, as it revolves, the semi-circle of metal clears off the superfluous portions. The ball of paper is now a ball of plaster externally. Time again enters largely into the manufacture. The first coating must thoroughly dry before the next is applied; and so again till the process has been repeated four or five times. Thus, when we visit a globe workshop, we are at first surprised at the number of white balls, from three inches' diameter to three feet, which occupy a large space. They are all steadily advancing toward completion. They can not be hurriedly dried. The duration of their quiescent state must depend upon the degrees of the thermometer in the ordinary atmosphere. They cost little. They consume nothing beyond a small amount of rent. As they advance to the dignity of perfect spheres, increased pains are taken in the application of the plaster. At last they are polished. Their surface is as hard and as fine as ivory. But, beautiful as they are, they may, like many other beautiful things, want a due equipoise. They must be perfectly balanced. They must move upon their poles with the utmost exactness. A few shot, let in here and there, correct all irregularities. And now the paper and plaster sphere is to be endued with intelligence.
What may be called the artistical portion of globe-making here commences. In the manufactory we are describing there are two skilled workers, who may take their rank as artists, but whose skill is limited, and at the same time perfected, by the uniformity of their operations. One of these artists, a young woman, who has been familiar with the business from her earliest years, takes the polished globe in her lap, for the purpose of marking it with lines of direction for covering it with engraved strips, which will ultimately form a perfect map. The inspection of a finished globe will show that the larger divisions of longitude are expressed by lines drawn from pole to pole, and those of latitude by a series of concentric rings. The polished plaster has to be covered with similar lines. These lines are struck with great rapidity, and with mathematical truth, by an instrument called a "beam compass," in the use of which this workwoman is most expert. The sphere is now ready for receiving the map, which is engraved in fourteen distinct pieces. The arctic and antarctic poles form two circular pieces, from which the lines of longitude radiate. These having been fitted and pasted, one of the remaining twelve pieces, containing 30 degrees, is also pasted on the sphere, in the precise space where the lines of longitude have been previously marked its lines of latitude corresponding in a similar manner. The paper upon which these portions of the earth's surface are engraved is thin and extremely tough. It is rubbed down with the greatest care, through all the stages of this pasting process. We have at length a globe covered with a plain map, so perfectly joined that every line and every letter fit together as if they had been engraved in one piece – which, of course, would be absolutely impossible for the purpose of covering a ball.
The artist who thus covers the globe, called a paster, is also a colorer. This is, of necessity, a work which can not be carried on with any division of labor. It is not so with the coloring of an atlas. A map passes under many hands in the coloring. A series of children, each using one color, produce in combination a map colored in all its parts, with the rapidity and precision of a machine. But a globe must be colored by one hand. It is curious to observe the colorer working without a pattern. By long experience the artist knows how the various boundaries are to be defined, with pink continents, and blue islands, and the green oceans, connecting the most distant regions. To a contemplative mind, how many thoughts must go along with the work, as he covers Europe with indications of populous cities, and has little to do with Africa and Australia but to mark the coast lines; as year after year he has to make some variation in the features of the great American continent, which indicates the march of the human family over once trackless deserts, while the memorable places of the ancient world undergo few changes but those of name. And then, as he is finishing a globe for the cabin of some "great ammirall," may he not think that, in some frozen nook of the Arctic Sea, the friendly Esquimaux may come to gaze upon his work, and seeing how petty a spot England is upon the ball, wonder what illimitable riches nature spontaneously produces in that favored region, some of which is periodically scattered by her ships through those dreary climes in the search for some unknown road amidst everlasting icebergs, while he would gladly find a short track to the sunny south. And then, perhaps, higher thoughts may come into his mind; and as this toy of a world grows under his fingers, and as he twists it around upon its material axis, he may think of the great artificer of the universe, having the feeling, if not knowing the words of the poet:
"In ambient air this ponderous ball He hung."
Contemplative, or not, the colorer steadily pursues his uniform labor, and the sphere is at length fully colored.
The globe has now to be varnished with a preparation technically known as "white hard," to which some softening matter is added to prevent