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Terrestrial & Celestial Globes. Edward Luther Stevenson
Читать онлайн.Название Terrestrial & Celestial Globes
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isbn 4064066382780
Автор произведения Edward Luther Stevenson
Жанр Математика
Издательство Bookwire
Fig. 40. Terrestrial Globe Gores of Boulengier, ca. 1518.
In the year 1877 or 1878, reports Professor Ferdinando Jacoli, Admiral William Acton acquired two interesting and scientifically valuable terrestrial globes of the early sixteenth century once belonging to Count Piloni of Belluno, Italy.179 That one appearing to be the older of the two resembles so closely the Paris green globe in size, having a diameter of 24 cm., and in its details, that there is good reason for thinking it to be the work of the same author. Like the Paris globe it is neither signed nor dated. The surface of the ball is covered with a preparation of plaster on which the geographical details have been written. Seas and lands are colored, the equator, the tropics, and the polar circles are indicated by gilded lines. Meridians are drawn at intervals of ten degrees, the prime meridian passing through the Canary Islands, and parallels are likewise represented at intervals of ten degrees. The metal meridian circle and the stand upon which the sphere rests retain in places some of the old gilding. Professor Jacoli expresses the opinion that it may be of Spanish or of Portuguese origin, an opinion based upon the nomenclature. It seems, however, probable that the author was an Italian and that he merely employed the Spanish or the Portuguese sources, as was so frequent, and in so large a measure necessary, in that day. In Africa the author has represented the “Peludes nili,” and two lakes into which several rivers flow having their source in the Mountains of the Moon. To the south-east of the continent is represented “Zanzibar insula,” and near this are a number of small islands with the legend “Iste insule ex mandato regis Portugalliae lustrate sunt.” The islands of Ceylon and Sumatra are laid down but are given the names “Taprobana” and “Seula” respectively. In the interior of Asia we read “Carama civitas magna,” near this “Thebet provincia mais,” and below “Hic dñat prespiter Johannes rex totius Indiae.” In eastern Asia is the name “Catay” and near this the legend “Zumsay est quedã civitas mag. in medio lacus magnus,” the Paris globe having “Quinsay” instead of “Zumsay.” The New World in its outlines bears striking resemblance to the early globes of Schöner. Along the west coast of South America is the legend “Tota ista provincia inventa est per mandatum regis Castelle,” near the same “Terra ultra incognita,” and extending along the west coast of North America “Terra ulterius incognita,” all of which legends, in identical wording, appear on the Paris globe. The Antilles are referred to in the legend “iste insule per Columbum Genuensem Almirantem ex mandato regis Castelle perite sunt,” and in South America “America ab inventore nuncupata.” Near the west coast of Africa we find “Insule portugalensium invente—domini 1477,” one of which is called “visionis insula.” The author has also represented an Antarctic continent but has made no reference to it by specific name or legend. If the Paris globe was constructed before 1520, as Marcel concluded, there is likewise good reason why the Acton globe should also be assigned to the second decade of the sixteenth century.
Las Casas, in his ‘Historia de las Indias,’ tells us that when Magellan (Fig. 41) offered his services to the King of Spain for an expedition to the Moluccas he had a globe to serve him in the demonstration of his plan. “Traìa el Magallanes vn Globo bien pintado, en que toda la tierra estaba, y alli señalò el camino que habia de llevar, salvo que el estracho dejò, de industria, en blanco, porque alguno no se lo saltease.”180 “Magellan had a well painted globe, which exhibited the entire earth, and he showed thereby the route which he thought of taking, but with intention he had left the strait blank so that no one might learn his secret.”
Fig. 41. Portrait of Magellan.
Other allusions to this globe we do not have, unless there is such in a letter written by Sebastian Alvares to King Don Manuel, dated Seville, July 18, 1519. In giving information concerning the plan of Magellan Alvares states: “A rrota que se diz que han de levar he dirto ao cabo fryo ficando lhe o brasy a mão dirta ate pasar a linha da particâo e daly navegar ao eloeste e loes noroeste dirtos a maluco a quall tr̃ra de maluco en vy asentada na poma e carta que ea fez o fo de Reynell a quall nò era acabada quando caa seu pay veo por ele, e seu pay acabou tudo e pos estas tr̃ras de maluco e p este paderam se fazem todallas cartas as quaêes faz dio Ribeiro e faz as agulhas quadrantes e esperas, porem nò vay narmada nem q̃r mais q̃ ganhar de comeer p seu engenho.” “The course which it is said they are to take is straight to Cape Frio, Brazil remaining on their right hand until they reach the line of demarcation, thence they are to navigate to the west and west-northwest straight to Moluco, which land of Moluco I have seen laid down on the sphere and map which the son of Reynell made here which was not complete when his father came here for him; and his father finished it all, and placed these islands of Moluco; and after this pattern all the maps are made which Diego Ribeiro makes, and he makes the compasses, quadrants and globes, but he does not go in the fleet, nor does he wish to do more than gain his living by his skill.”181
We find reference to a globe of this early period as belonging to Juan Sebastian del Cano, the reference thereto being contained in his will made on board the Victoria, June 26, 1526, and reading “Una esfera poma del mondo.”182 It probably was made of wood and painted, as there is good reason for believing that such as were carried by early navigators on their vessels were of this character. Harrisse thinks “this globe would probably prove to be one of the most interesting of all for that period, exhibiting, doubtless, the hypothesis of Magellan relative to the configuration of the southwest coast of South America north of 50 degrees south latitude.”183 Although the will of Del Cano is dated 1526 there is reason for thinking the globe was constructed prior to 1520.
Among the globe makers of the early sixteenth century none merits greater distinction than Johann Schöner of Nürnberg (1477–1547) (Fig. 42), mathematician, astronomer, and geographer.184 He was born in Carlstadt, Franconia, held a church office for some years in Bamberg, and in the year 1526, upon the advice of Melanchthon, became a professor of mathematics in the gymnasium of Nürnberg, to the fame of which city, as a scientific center, Regiomontanus had so greatly contributed in the preceding century. His activities as a globe maker began as early as the second decade of the century, and his influence soon became very pronounced. In Nürnberg he labored until the time of his death in the year 1547, editing, in addition to his other activities, the literary and scientific works of Regiomontanus and of Werner, and each year until 1543 issued his so-called Calendars. His numerous publications, mathematical, astronomical, and cosmographical, alone entitle him to a place of first importance among German scientific leaders of his day.
Fig. 42. Portrait of Johann Schöner.
It was as early as 1515, at the cost of a wealthy patron, Johann Seylor, that he made in Bamberg what has usually been accepted as his first globe, two copies of which are now known, and for which it has been thought he wrote his tract bearing title ‘Luculentissima quaedā terrae totius descriptio … cum