World map

“ An excellent example of mediæval cartography, before these results and others like them began to show their influence on maps, is provided by the celebrated map preserved in Hereford4748 Cathedral, made about 1280 by Richard of Haldingham. Here is the world still shown as a round disk, with little conception of the form of the Mediterranean and its branch seas; while even the British Isles and north-west Europe are strangely distorted to fit the circle. Such is an illustration of the conception of the world still existing in western Europe. ”

“ Map Projections are dealt with separately below. It will suffice therefore to point out that the ordinary needs of the cartographer can be met by conical projections, and, in the case of maps covering a wide area, by Lambert’s equal area projection. The indiscriminate use of Mercator’s projection, for maps of the world, is to be deprecated owing to the inordinate exaggeration of areas in high latitudes. In the case of topographical maps sheets bounded by meridians and parallels are to be commended. ”

“ Some kinds of apparatus have long been found in schools. Geography has long had the aid of maps, and no teacher would use a geography which was not furnished with a respectable atlas. But maps alone are not a sufficient apparatus in teaching geography. A globular revolving map of the world, a globe, and a cylindrical revolving Mercator's chart, will furnish important aid in explaining the globular, polar, and Mercator's projections of a map of the world. Astronomy and natural philosophy can no more be successfully taught without the use of machines, than can geography without the use of maps. ”

“ Scientific geography begins when men come to drawing maps, an art which perhaps no savage takes to untaught, but which was known to the early civilized nations; the oldest known map is an Egyptian plan of the gold-mines of Æthiopia. The earliest known mention of a geographer attempting a map of the world is by Herodotus, who tells of Aristagoras’s bronze tablet inscribed with the [336] circuit of the whole earth, the sea and all rivers. But to the ancients the known world was a very limited district round their own countries. ”

“ The accessions to geographical knowledge had become so vast and the details were so enormous that the work of giving the whole of the surface of the earth, as far as known, with all the details of continents, oceans, gulfs, bays, straits, rivers, mountain-ranges, and islands, with any marked approximation to correctness, was not accomplished until Mercator produced his great map of the world in 1569 ”

“ Thus Claudius Clavus Swartha (Niger) , who was at Rome in 1424, compiled a map of the world, extending westward as far as Greenland. The learned Cardinal Nicolaus Krebs, of Cusa (Cues) on the Moselle, who died 1464, drew a map of Germany which was first published in 1491; D. Nicolaus Germanus, a monk of Reichenbach, in 1466 prepared a set of Ptolemy’s maps on a new projection with converging meridians; and Paolo del Pozzo Toscanelli in 1474 compiled a new chart on a rectangular projection, which was to guide the explorer across the western ocean to Cathay and India. ”

“ There are several other sources of enjoyment in a long voyage, which are of a more reasonable nature. The map of the world ceases to be a blank; it becomes a picture full of the most varied and animated figures. Each part assumes its proper dimensions: continents are not looked at in the light of islands, or islands considered as mere specks, which are, in truth, larger than many kingdoms of Europe. Africa, or North and South America, are well-sounding names, and easily pronounced; ”

“ On the international map of the world, planned by Professor A. Penck on a scale of 1:1,000,000, which has been undertaken by the leading governments of the world, the ground is shown by contours at intervals of 100 metres (to be increased to 200 and 500 metres in mountainous districts) ; the strata are in graded tints, viz. blue for the sea, green for lowlands up to 300 metres, yellow between 300 and 500 metres, brown up to 2000 metres, and reddish tints beyond that height. ”

“ Which, if my reader can at present do—or at least refer to a fairly drawn double-circle map of the globe with converging meridians—I will pray him next to observe, that, although the old division of the world into four quarters is now nearly effaced by emigration and Atlantic cable, yet the great historic question about the globe is not how it is divided, here and there, by ins and outs of land or sea ”

“ It is a point to be especially noted that the dominant cosmographical idea of the map makers of the first quarter of the century represented the New World regions as independent of Asia. It is the idea set forth in the Portuguese maps, such as the Cantino and the Canerio; it is the idea which we find represented in the Waldseemüller maps and practically in all the Lusitano-Germanic maps of the period.188 Schöner had written in his tract of 1515, “Hunc in modum terra quadriparita cognoscitur, et sunt tres primae partes continentes, id est terra firma. ”

“ In 1511 Bernard Sylvanus produced in his edition of Ptolemy a general map of the world, upon what has since been called the cordiform or heart-shaped projection, which, while giving the whole of the geographical features of the earth, was, from the curve and sweep of the parallels of both latitude and longitude, better adapted than anything that had preceded it to convey upon a plane surface a general idea of the earth's globular form. ”

“ For a long time mountains were supposed to be the limitations of rivers, and old maps represent them always as flowing along the valleys without ever passing through the mountain-chains that divide them; but geology is fast correcting the errors of geography, and a map which represents merely the external features of a country, without reference to their structural relations, is no longer of any scientific value. ”

“ RUSKIN'S MAPS
Reading the map is as great a pleasure to some people as reading a story-book. You will see them pore over the atlas for an hour together, going on dream-journeys. It is a cheap way of globe-trotting, and gets rid of the discomforts; only one must have imagination to turn the wriggling hair-lines into vistas of river scenery, and the woolly-bear shading into forested crests and peaks against the sunset. It needs a good deal of imagination to get over the ugliness of most modern maps; but why should maps be ugly? ”

“ On seeing a relief map of one of the continents for the first time, there arises a sense of wonder and surprise, and as the realization dawns upon one of the continuity of the great mass of land represented, with its altitudes and depressions, and that it is one stupendous aggregation of soil, rock and vegetation, surrounded by a great expanse of water, a feeling of awe and astonishment is awakened. ”

“ The construction of a map virtually resolves itself into the drawing of two sets of lines, one set to represent meridians, the other to represent parallels. These being drawn, the filling in of the outlines of countries presents no difficulty. The first and most natural idea that occurs to one as to the manner of drawing the circles of latitude and longitude is to draw them according to the laws of perspective. Perhaps the next idea which would occur would be to derive the meridians and parallels in some other simple geometrical way. ”

“ What the ideal geographer, as cartographer, first of all tries to do is to devise a notation by which he and his fellow-geographers, by the inspection of a map of a given region, may get a simultaneous vision of the terrestrial phenomena which all the explorers and observers of that region have collectively seen. Now it must always be that however minutely observed and explored a region—even the most inhabited—may be, there is always something new to be observed, even in the shape and configuration of the surface, for these are always changing ”

“ The French, Russians, Spaniards, Danes, and indeed most nations of Europe, sensible of the vast importance of accurate maps, especially such as relate to their respective territories, have contributed to render them much more accurate than they formerly were; so that at present there is scarcely any part of the globe, which has been visited by sea or land, of-which we do not possess accurate maps; and no sooner has the labour of any traveller filled up a void, or corrected an error, than the map of the country which he has visited becomes more full and accurate. ”

“ He easily understands that they must act as a source of drainage for wet lands and as channels for the irrigation of dry areas.
In looking upon the great bodies of water, oceans, seas, lakes and gulfs, as represented on the maps, he questions the relation of these waters to the land, their depth and what place they fill in the economy of nature. Indeed, the relief map has an awakening effect, quickening the imagination and stimulating to mental effort—earnest thought.
They are invaluable in their place and have come to stay ”

“ The modern map, well and thoroughly made, records faithfully every fact concerning the surface of the earth now known to man, and there is very little about it that scholarly geographers do not now know. In addition to the modern map’s accuracy, it is as much more attractive than its forebears to the eye as the beautiful color pictures now used in textbooks are seen to be when compared with the muddy wood cuts that appeared in schoolbooks a century or more ago. ”

“ The scale of that map, as determined by the equator or centre meridian, we will suppose to be 1:125,000,000, while the encircling meridian indicates a scale of 1:80,000,000; and a “mean” scale, equal to the square root of the proportion which the area of the map bears to the actual area of a hemisphere, is 1:112,000,000. In adopting a scale for their maps, cartographers will do well to choose a multiple of 1000 if possible, for such a scale can claim to be international, while in planning an atlas they ought to avoid a needless multiplicity of scales. ”

“ Mercator's principal title to fame rests upon his invention of the method of drawing maps, which is known as Mercator's Projection. Under this system the map represents the earth as an unrolled cylinder, and the poles are remanded to infinity. The parallels of latitude and the meridians are drawn as straight lines, crossing one another at right angles. ”

“ In this work the British hydrographic office may justly claim the credit of having contributed the chief share. Great Britain has likewise taken the lead in those deep-sea explorations which reveal to us the configuration of the sea-bottom, and enable us to construct charts of the ocean bed corresponding to the contoured maps of dry land yielded by topographical surveys. (E. G. R.)
Map Projections In the construction of maps, one has to consider how a portion of spherical surface, or a configuration traced on a sphere, can be represented on a plane. ”

“ A finished map border is used or omitted according to the kind of map prepared. Diagrammatic maps and maps on which no parallels and meridians appear do not need finished borders. On a map that shows complete areal geologic or other coloring, such as a map in a Survey geologic folio, the border lines tend to destroy the simple effect of the whole map. On a map that is not completely colored and on all very large maps borders are really necessary. ”

“ When the Greek philosopher Anaxagoras said that man was born to contemplate the heavens, the sun, and the moon, he might have added also the earth and its formation in all its details, and enjoined on his disciples the necessity of representing the result of such contemplations by maps and charts. We require a map fully to understand the geography and chorography of a country; hence a study of the maps made by contemporaneous makers becomes the duty of the writer of New Netherland history. ”

“ My 'Handbook of the Stars' has been prepared to aid the student in the construction of such maps.
In selecting maps it is well to be able to recognise the amount of distortion and scale-variation. This may be done by examining the spaces included between successive parallels and meridians, near the edges and angles of the maps, and comparing these either with those in the centre of the map, or with the known figures and dimensions of the corresponding spaces on a globe. ”

“ Much the same may be said of the dikes of cooled magma which have been injected along preëxisting fractures.
The base of the geological map.—Modern topographic maps form an important part of the library of the serious student of physiography; they are the gazetteer of this branch of science. Every civilized nation has to-day either completed a topographic atlas of its territory, or it is vigorously prosecuting a survey to furnish maps which represent the relief with some detail, and publishing the results in the form of an atlas of quadrangles. ”

“ For instance, it is clear that in this case all meridian lengths are too small and all lengths along the parallels, except the equator, are too large. Thus although the areas are preserved the shapes are, especially away from the equator, much distorted.
The property of preserving areas is, however, a valuable one when the purpose of the map is to exhibit areas. If, for example, it is desired to give an idea of the area and distribution of the various states comprising the British Empire, this is a fairly good projection. ”

“ Commercial considerations are not to be overlooked; cheap and rapid methods of reproduction bring their temptations as well as their advantages to bear upon cartography. Their advantages are manifest; the map, whether as an adjunct to travel or as a graphic illustration of a great variety of subjects, has become a commodity of almost daily use. But in some countries, such as the United States, the standard of cartography generally is as low as that of the maps of the survey is high. ”