Читать книгу Little Masterpieces of Science: Explorers - Various - Страница 6
Justin Winsor
Оглавление[Part of Chapter IX., “The Final Agreement and the First Voyage” from “Christopher Columbus and How He Received and Imparted the Spirit of Discovery,” copyright by Houghton, Mifflin & Co., Boston and New York, 1892.]
So, everything being ready, on the 3rd of August, 1492, a half-hour before sunrise, he unmoored his little fleet in the stream, and, spreading his sails, the vessels passed out of the little river roadstead of Palos, gazed after, perhaps, in the increasing light, as the little crafts reached the ocean, by the friar of Rabida, from its distant promontory of rock.
The day was Friday, and the advocates of Columbus's canonization have not failed to see a purpose in its choice as the day of our Redemption, and as that of the deliverance of the Holy Sepulchre by Geoffrey de Bouillon, and of the rendition of Granada, with the fall of the Moslem power in Spain. We must resort to the books of such advocates, if we would enliven the picture with a multitude of rites and devotional feelings that they gather in the meshes of the story of the departure. They supply to the embarkation a variety of detail that their holy purposes readily imagine, and place Columbus at last on his poop, with the standard of the Cross, the image of the Saviour nailed to the holy wood, waving in the early breeze that heralded the day. The embellishments may be pleasing, but they are not of the strictest authenticity.
In order that his performance of an embassy to the princes of the East might be duly chronicled, Columbus determined, as his journal says, to keep an account of the voyage by the west, “by which course,” he says, “unto the present time, we do not know, for certain, that any one has passed.” It was his purpose to write down, as he proceeded, everything he saw and all that he did, and to make a chart of his discoveries, and to show the directions of his track.
Nothing occurred during those early August days to mar his run to the Canaries, except the apprehension which he felt that an accident, happening to the rudder of the Pinta—a steering gear now for some time in use, in place of the old lateral blades—was a trick of two men, her owners, Gomez Rascon and Christopher Quintero, to impede a voyage in which they had no heart. The Admiral knew the disposition of these men well enough not to be surprised at the mishap, but he tried to feel secure in the prompt energy of Pinzon, who commanded the Pinta.
As he passed (August 24–25, 1492) the peak of Teneriffe, it was the time of an eruption, of which he makes bare mention in his journal. It is to the corresponding passage of the Historie, [written by his son, Fernando,] that we owe the somewhat sensational stories of the terrors of the sailors, some of whom certainly must long have been accustomed to like displays in the volcanoes of the Mediterranean.
At the Gran Canarie the Nina was left to have her lateen sails changed to square ones; and the Pinta, it being found impossible to find a better vessel to take her place, was also left to be overhauled for her leaks, and to have her rudder again repaired, while Columbus visited Gomera, another of the islands. The fleet was reunited at Gomera on September 2. Here he fell in with some residents of the Ferro, the westermost of the group, who repeated the old stories of land occasionally seen from its heights, lying towards the setting sun. Having taken on board wood, water, and provisions, Columbus finally sailed from Gomera on the morning of Thursday, September 6. He seems to have soon spoken a vessel from Ferro, and from this he learned that three Portuguese caravels were lying in wait for him in the neighbourhood of that island, with a purpose, as he thought, of visiting in some way upon him, for having gone over to the interests of Spain, the indignation of the Portuguese king. He escaped encountering them.
Up to Sunday, September 9, they had experienced so much calm weather, that their progress had been slow. This tediousness soon raised an apprehension in the mind of Columbus that the voyage might prove too long for the constancy of his men. He accordingly determined to falsify his reckoning. This deceit was a large confession of his own timidity in dealing with his crew, and it marked the beginning of a long struggle with deceived and mutinous subordinates, which forms so large a part of the record of his subsequent career.
The result of Monday's sail, which he knew to be sixty leagues, he noted as forty-eight, so that the distance from home might appear less than it was. He continued to practise this deceit.
The distances given by Columbus are those of dead reckoning beyond any question. Lieutenant Murdock, of the United States Navy, who has commented on this voyage, makes his league the equivalent of three modern nautical miles, and his mile about three-quarters of our present estimate for that distance. Navarrete says that Columbus reckoned in Italian miles, which are a quarter less than Spanish miles. The Admiral had expected to make land after sailing about seven hundred leagues from Ferro; and in ordering his vessels in case of separation to proceed westward, he warned them when they sailed that distance to come to the wind at night, and only to proceed by day.
The log as at present understood in navigation had not yet been devised. Columbus depended in judging of his distance on the eye alone, basing his calculations on the passage of objects or bubbles past the ship, while the running out of his hour glasses afforded the multiple for long distances.
On Thursday, the 13th of September, he notes that the ships were encountering adverse currents. He was now three degrees west of Flores, and the needle of the compass pointed as it had never been observed before, directly to the true north. His observation of this fact marks a significant point in the history of navigation. The polarity of the magnet, an ancient possession of the Chinese, had been known perhaps for three hundred years, when this new spirit of discovery awoke in the fifteenth century. The Indian Ocean and its traditions were to impart, perhaps through the Arabs, perhaps through the returning Crusaders, a knowledge of the magnet to the dwellers on the shores of the Mediterranean, and to the hardier mariners who had pushed beyond the pillars of Hercules, so that the new route to that same Indian Ocean was made possible in the fifteenth century. The way was prepared for it gradually. The Catalans from the port of Barcelona pushed out into the great Sea of Darkness under the direction of their needles, as early at least as the twelfth century. The pilots of Genoa and Venice, the hardy Majorcans and the adventurous Moors, were followers of almost equal temerity.
A knowledge of the variation of the needle came more slowly to be known to the mariners of the Mediterranean. It had been observed by Peregrini as early as 1269, but that knowledge of it which rendered it greatly serviceable in voyages does not seem to be plainly indicated in any of the charts of these transition centuries, till we find it laid down on the maps of Andrea Bianco in 1436.
It was no new thing then when Columbus, as he sailed westward, marked the variation, proceeding from the northeast more and more westerly; but it was a revelation when he came to a position where the magnetic north and the north star stood in conjunction, as they did on this 13th of September, 1492. As he still moved westerly the magnetic line was found to move farther and farther away from the pole as it had before the 13th approached it. To an observer of Columbus's quick perceptions, there was a ready guess to possess his mind. This inference was that this line of no variation was a meridian line, and that divergence from it east and west might have a regularity which would be found to furnish a method of ascertaining longitude far easier and surer than tables or water clocks. We know that four years later he tried to sail his ship on observations of this kind. The same idea seems to have occurred to Sebastian Cabot, when a little afterwards he approached and passed in a higher latitude, what he supposed to be the meridian of no variation. Humboldt is inclined to believe that the possibility of such a method of ascertaining longitude was that uncommunicable secret, which Sebastian Cabot many years later hinted at on his death-bed.
The claim was made near a century later by Livio Sanuto in his Geographia, published at Venice, in 1588, that Sebastian Cabot had been the first to observe this variation, and had explained it to Edward VI., and that he had on a chart placed the line of no variation at a point one hundred and ten miles west of the island of Flores in the Azores.
These observations of Columbus and Cabot were not wholly accepted during the sixteenth century. Robert Hues, in 1592, a hundred years later, tells us that Medina, the Spanish grand pilot, was not disinclined to believe that mariners saw more in it than really existed and that they found it a convenient way to excuse their own blunders. Nonius was credited with saying that it simply meant that worn-out magnets were used, which had lost their power to point correctly to the pole. Others had contended that it was through insufficient application of the loadstone to the iron that it was so devious in its work.
What was thought possible by the early navigators possessed the minds of all seamen in varying experiments for two centuries and a half. Though not reaching such satisfactory results as were hoped for, the expectation did not prove so chimerical as was sometimes imagined when it was discovered that the lines of variation were neither parallel, nor straight, nor constant. The line of no variation which Columbus found near the Azores had moved westward with erratic inclinations, until to-day it is not far from a straight line from Carolina to Guinea. Science, beginning with its crude efforts at the hands of Alonzo de Santa Cruz, in 1530, has so mapped the surface of the globe with observations of its multifarious freaks of variation, and the changes are so slow, that a magnetic chart is not a bad guide to-day for ascertaining the longitude in any latitude for a few years neighbouring to the date of its records. So science has come around in some measure to the dreams of Columbus and Cabot.
But this was not the only development which came from this ominous day in the mid-Atlantic in that September of 1492. The fancy of Columbus was easily excited, and notions of a change of climate, and even aberration of the stars were easily imagined by him amid the strange phenomena of that untracked waste.
While Columbus was suspecting that the north star was somewhat wilfully shifting from the magnetic pole, now to a distance of 5° and then of 10°, the calculations of modern astronomers have gauged the polar distance existing in 1492 at 3° 28´, as against the 1° 20´ of to-day. The confusion of Columbus was very like his confounding an old world with a new, inasmuch as he supposed it was the pole star and not the needle which was shifting.
He argued from what he saw, or what he thought he saw, that the line of no variation marked the beginning of a protuberance of the earth, up which he ascended as he sailed westerly, and that this was the reason of the cooler weather which he experienced. He never got over some notions of this kind, and he believed he found confirmation of them in his later voyages.
Even as early as the reign of Edward III. of England, Nicholas of Lynn, a voyager to the northern seas, is thought to have definitely fixed the magnetic pole in the Arctic regions, transmitting his views to Cnoyen, the master of the later Mercator, in respect to the four circumpolar islands, which in the sixteenth century made so constant a surrounding of the north pole.
The next day (September 14), after these magnetic observations, a water wagtail was seen from the Nina—a bird which Columbus thought unaccustomed to fly over twenty-five leagues from land, and the ships were now, according to their reckoning, not far from two hundred leagues from the Canaries. On Saturday they saw a distant bolt of fire fall into the sea. On Sunday, they had a drizzling rain, followed by pleasant weather, which reminded Columbus of the nightingales, gladdening the climate of Andalusia in April. They found around the ships much green floatage of weeds, which led them to think some islands must be near. Navarrete thinks there was some truth in this, inasmuch as the charts of the early part of this century represent breakers as having been seen in 1802, near the spot where Columbus can be computed to have been at this time. Columbus was in fact within that extensive prairie of floating seaweed which is known as the Sargasso Sea, whose principal longitudinal axis is found in modern times to lie along the parallel of 41° 30´, and the best calculations which can be made from the rather uncertain data of Columbus's journal seem to point to about the same position.
There is nothing in all these accounts, as we have them abridged by La Casas, to indicate any great surprise, and certainly nothing of the overwhelming fear which, the Historie tells us, the sailors experienced when they found their ships among these floating masses of weeds, raising apprehension of a perpetual entanglement in their swashing folds.
The next day (September 17) the currents became favourable, and the weeds still floated about them. The variation of the needle now became so great that the seamen were dismayed, as the journal says, and the observation being repeated Columbus practised another deceit and made it appear that there had been really no variation, but only a shifting of the polar star! The weeds were now judged to be river weeds, and a live crab was found among them—a sure sign of near land, as Columbus believed, or affected to believe. They killed a tunny and saw others. They again observed a water wagtail, “which does not sleep at sea.” Each ship pushed on for the advance, for it was thought the goal was near. The next day the Pinta shot ahead and saw great flocks of birds towards the west. Columbus conceived that the sea was growing, fresher. Heavy clouds hung on the northern horizon, a sure sign of land, it was supposed.
On the next day two pelicans came on board, and Columbus records that these birds are not accustomed to go twenty leagues from land. So he sounded with a line of two hundred fathoms to be sure he was not approaching land; but no bottom was found. A drizzling rain also betokened land, which they could not stop to find, but would search for on their return, as the journal says. The pilots now compared their reckonings. Columbus said they were 400 leagues, while the Pinta's record showed 420, and the Nina's 440.
On September 20 other pelicans came on board; and the ships were again among the weeds. Columbus was determined to ascertain if these indicated shoal water and sounded, but could not reach bottom. The men caught a bird with feet like a gull; but they were convinced it was a river bird. Then singing land birds, as was fancied, hovered about as it darkened, but they disappeared before morning. Then a pelican was observed flying to the southwest, and as “these birds sleep on shore, and go to sea in the morning,” the men encouraged themselves with the belief that they could not be far from land. The next day a whale could be but another indication of land; and the weeds covered the sea all about. On Saturday, they steered west by northwest, and got clear of the weeds. This change of course so far to the north, which had begun on the previous day, was occasioned by a head wind, and Columbus says he welcomed it, because it had the effect of convincing the sailors that westerly winds to return by were not impossible. On Sunday (September 23), they found the wind still varying; but they made more westering than before—weeds, crabs, and birds still about them. Now there was smooth water, which again depressed the seamen; then the sea arose, mysteriously, for there was no wind to cause it. They still kept their course westerly and continued it till the night of September 25.
Columbus at this time conferred with Pinzon, as to a chart which they carried, which showed some islands, near where they now supposed the ships to be. That they had not seen land, they believed was either due to currents which had carried them too far north, or else their reckoning was not correct. At sunset Pinzon hailed the Admiral, and said he saw land, claiming the reward. The two crews were confident that such was the case, and under the lead of their commanders they all kneeled and repeated the Gloria in Excelsis. The land appeared to lie southwest, and everybody saw the apparition. Columbus changed the fleet's course to reach it; and as the vessels went on, in the smooth sea, the men had the heart, under their expectation, to bathe in its amber glories. On Wednesday, they were undeceived, and found that the clouds had played them a trick. On the 27th their course lay more directly west. So they went on, and still remarked upon all the birds they saw and weed-drift which they pierced. Some of the fowl they thought to be such as were common at the Cape Verde Islands, and were not supposed to go far to sea. On the 30th of September, they still observed the needles of their compasses to vary, but the journal records that it was the pole star which moved, and not the needle. On October 1, Columbus says they were 707 leagues from Ferro; but he had made his crew believe they were only 584. As they went on, little new for the next few days is recorded in the journal; but on October 3, they thought they saw among the weeds something like fruits. By the 6th, Pinzon began to urge a southwesterly course, in order to find the islands, which the signs seemed to indicate in that direction. Still the Admiral would not swerve from his purpose, and kept his course westerly. On Sunday the Nina fired a bombard and hoisted a flag as a signal that she saw land, but it proved a delusion. Observing towards evening a flock of birds flying to the southwest, the Admiral yielded to Pinzon's belief, and shifted his course to follow the birds. He records as a further reason for it that it was by following the flights of birds that the Portuguese had been so successful in discovering islands in other seas.
Columbus now found himself two hundred miles and more farther than the three thousand miles west of Spain, where he supposed Cipango to lie, and he was 25½° north of the equator, according to his astrolabe. The true distance of Cipango or Japan was sixty-eight hundred miles still farther, or beyond both North America and the Pacific. How much beyond that island, in its supposed geographical position, Columbus expected to find the Asiatic main we can only conjecture from the restorations which modern scholars have made of Toscanelli's map, which makes the island about 10° east of Asia, and from Behaim's globe, which makes it 20°. It should be borne in mind that the knowledge of its position came from Marco Polo, and he does not distinctly say how far it was from the Asiatic coast. In a general way, as to these distances from Spain to China, Toscanelli and Behaim agreed, and there is no reason to believe that the views of Columbus were in any noteworthy degree different.
In the trial years afterward, when the Fiscal contested the rights of Diego Colon, it was put in evidence by one Vallejo, a seaman, that Pinzon was induced to urge the direction to be changed to the southwest, because he had in the preceding evening observed a flight of parrots in that direction, which could have only been seeking land. It was the main purpose of the evidence in this part of the trial to show that Pinzon had all along forced Columbus forward against his will.
How pregnant this change of course in the vessels of Columbus was has not escaped the observation of Humboldt and many others. A day or two further on his westerly way, and the Gulf Stream would, perhaps, insensibly have borne the little fleet up the Atlantic coast of the future United States, so that the banner of Castile might have been planted at Carolina.
On the 7th of October, Columbus was pretty nearly in latitude 25° 50´—that of one of the Bahama Islands. Just where he was by longitude there is much more doubt, probably between 65° and 66°. On the next day the land birds flying along the course of the ships seemed to confirm their hopes. On the 10th the journal records that the men began to lose patience; but the Admiral reassured them by reminding them of the profits in store for them, and of the folly of seeking to return when they had already gone so far.
It is possible that, in this entry, Columbus conceals the story which came out later in the recital of Oviedo, with more detail than in the Historie and Las Casas, that the rebellion of his crew was threatening enough to oblige him to promise to turn back if land was not discovered in three days. Most commentators, however, are inclined to think that this story of a mutinous revolt was merely engrafted from hearsay or other source by Oviedo upon the more genuine recital, and that the conspiracy to throw the Admiral into the sea has no substantial basis in contemporary report. Irving, who has a dramatic tendency throughout his whole account of the voyage to heighten his recital with touches of the imagination, nevertheless allows this, and thinks that Oviedo was misled by listening to a pilot, who was a personal enemy of the Admiral.
The elucidations of the voyage which were drawn out in the famous suit of Diego with the Crown in 1513 and 1515, afford no ground for any belief in this story of the mutiny and the concession of Columbus to it.
It is not, however, difficult to conceive the recurrent fears of his men and the incessant anxiety of Columbus to quiet them. From what Peter Martyr tells us—and he may have got it directly from Columbus's lips—the task was not an easy one to preserve subordination and to instil confidence. He represents that Columbus was forced to resort in turn to argument, persuasion and enticements, and to picture the misfortunes of the royal displeasure.
The next day, notwithstanding a heavier sea than they had before encountered, certain signs sufficed to lift them out of their despondency. These were floating logs, or pieces of wood, one of them apparently carved by hand, bits of cane, a green rush, a stalk of rose berries and other drifting tokens.
Their southwesterly course had now brought them down to about the twenty-fourth parallel, when after sunset on the 11th they shifted their course to due west, while the crew of the Admiral's ship united, with more fervour than usual, in the Salve Regina. At about ten o'clock Columbus, peering into the night, thought he saw—if we may believe him—a moving light, and pointing out the direction to Pero Gutierrez, this companion saw it too; but another, Rodrigo Sanchez, situated apparently on another part of the vessel, was not able to see it. It was not brought to the attention of any others. The Admiral says that the light seemed to be moving up and down, and he claimed to have got other glimpses of its glimmer at a later moment. He ordered the Salve to be chanted, and directed a vigilant watch to be set on the forecastle. To sharpen their vision he promised a silken jacket, beside the income of ten thousand maravedis which the King and Queen had offered to the fortunate man who should first descry the coveted land.
This light has been the occasion of such comment, and nothing will ever, it is likely, be settled about it, further than that the Admiral, with an inconsiderate rivalry of a common sailor, who later saw the actual land, and with an ungenerous assurance, ill-befitting a commander, pocketed a reward which belonged to another. If Oviedo, with his prejudices, is to be believed, Columbus was not even the first who claimed to have seen this dubious light. There is a common story that the poor sailor, who was defrauded, later turned Mohammedan and went to live among that juster people. There is a sort of retributive justice in the fact that the pension of the Crown was made a charge upon the shambles of Seville, and thence Columbus received it till he died.
Whether the light is to be considered a reality or a fiction will depend much on the theory each may hold regarding the position of the landfall. When Columbus claimed to have discovered it, he was twelve or fourteen leagues away from the island, where four hours later land was indubitably found. Was the light on a canoe? Was it on some small, outlying island, as has been suggested? Was it a torch carried from hut to hut, as Herrera avers? Was it on either of the other vessels? Was it on the low island on which, the next morning he landed? There was no elevation on that island sufficient to show even a strong light at a distance of ten leagues. Was it a fancy or a deceit? No one can say. It is very difficult for Navarrete, and even for Irving, to rest satisfied with what after all may have been only an illusion of a fevered mind, making a record of the incident in the excitement of a wonderful hour, when his intelligence was not as circumspect as it might have been.
Four hours after the light was seen, at two o'clock in the morning, when the moon, near its third quarter, was in the east, the Pinta, keeping ahead, one of her sailors, Rodrigo de Triane descried the land two leagues away, and a gun communicated the joyful intelligence to the other ships. The fleet took in sail, and each vessel, under backed canvas, was pointed to the wind. Thus they waited for daybreak. It was a proud moment of painful suspense for Columbus; and brimming hopes, perhaps fears of disappointment, must have accompanied that hour of wavering enchantment. It was Friday, October 12, of the old chronology, and the little fleet had been thirty-three days on its way from the Canaries, and we must add ten days more to complete the period since they left Palos. The land before them was seen, as the day dawned, to be a small island, “called in the Indian tongue” Guanahani. Some naked natives were descried. The Admiral and the commanders of the other vessels prepared to land. Columbus took the royal standard and the others each a banner of the green cross, which bore the initials of the sovereign with a cross between, a crown surmounting every letter. Thus, with the emblems of their power, and accompanied by Rodrigo de Escoveda and Rodrigo Sanchez and some seamen, the boat rowed to the shore. They immediately took formal possession of the land, and the notary recorded it.
The words of the prayer usually given as uttered by Columbus on taking possession of San Salvador, when he named the island, cannot be traced farther back than a collection of Tablas Chronologicas, got together at Valencia in 1689, by a Jesuit father, Claudio Clemente. Harrisse finds no authority for the statement of the French canonizers that Columbus established a form of prayer which was long in vogue, for such occupations of new lands.
Las Casas, from whom we have the best account of the ceremonies of the landing, does not mention it; but we find pictured in his pages the grave impressiveness of the hour; the form of Columbus, with a crimson robe over his armour, central and grand; and the humbleness of his followers in their contrition for the hours of their faint-heartedness.
Columbus now enters in his journal his impressions of the island and its inhabitants. He says of the land that it bore green trees, was watered by many streams, and produced divers fruits. In another place he speaks of the island as flat, without lofty eminence, surrounded by reefs, with a lake in the interior.
The courses and distances of his sailing both before and on leaving the island, as well as this description, are the best means we have of identifying the spot of this portentous landfall. The early maps may help in a subsidiary way, but with little precision.
There is just enough uncertainty and contradiction respecting the data and arguments applied in the solution of this question, to render it probable that men will never quite agree which of the Bahamas it was upon which these startled and exultant Europeans first stepped. Though Las Casas reports the journal of Columbus unabridged for a period after the landfall, he unfortunately condenses it for some time previous. There is apparently no chance of finding geographical conditions that in every respect will agree with this record of Columbus, and we must content ourselves with what offers the fewest disagreements. An obvious method, if we could depend on Columbus's dead reckoning, would be to see for what island the actual distance from the Canaries would be nearest to his computed run; but currents and errors of the eye necessarily throw this sort of computation out of the question, and Captain G. A. Fox, who has tried it, finds that Cat Island is three hundred and seventeen, the Grand Turk six hundred and twenty-four nautical miles, and the other supposable points at intermediate distances out of the way as compared with his computation of the distance run by Columbus, three thousand four hundred and fifty-eight of such miles.
The reader will remember the Bahama group as a range of islands, islets, and rocks, said to be some three thousand in number, running southeast from a point part way up the Florida coast, and approaching at the other end the coast of Hispaniola. In the latitude of the lower point of Florida, and five degrees east of it, is the island of San Salvador or Cat Island, which is the most northerly of those claimed to have been the landfall of Columbus. Proceeding down the group, we encounter Watling's, Samana, Acklin (with the Plana Cays), Mariguana, and the Grand Turk—all of which have their advocates. The three methods of identification which have been followed are, first, by plotting the outward track; second, by plotting the track between the landfall and Cuba, both forward and backward; third, by applying the descriptions, particularly Columbus's, of the island first seen. In this last test, Harrisse prefers to apply the description of Las Casas, which is borrowed in part from that of the Historie, and he reconciles Columbus's apparent discrepancy when he says in one place that the island was “pretty large,” and in another “small,” by supposing that he may have applied these opposite terms, the lesser to the Plana Cays, as first seen, and the other to the Crooked Group, or Acklin Island, lying just westerly, on which he may have landed. Harrisse is the only one who makes this identification; and he finds some confirmation in later maps, which show thereabout an island, Triango or Triangulo, a name said by Las Casas to have been applied to Guanahani at a later day. There is no known map earlier than 1540 bearing this alternative name of Triango.
San Salvador seems to have been the island selected by the earliest of modern inquirers in the seventeenth and eighteenth centuries, and it has had the support of Irving and Humboldt in later times. Captain Alexander Slidell Mackenzie of the United States navy worked out the problem for Irving. It is much larger than any of the other islands, and could hardly have been called by Columbus in any alternative way a “small” island, while it does not answer Columbus's description of being level, having on it an eminence of four hundred feet, and no interior lagoon, as his Guanahani demands. The French canonizers stand by the old traditions, and find it meet to say that “the English Protestants not finding the name of San Salvador fine enough have substituted for it that of Cat, and in their hydrographical atlases the Island of the Holy Saviour is nobly called Cat Island.”
The weight of modern testimony seems to favour Watling's Island, and it so far answers Columbus's description that about one-third of its interior is water, corresponding to his “large lagoon.” Muñoz first suggested it in 1793; but the arguments in its favour were first spread out by Captain Becher of the royal navy in 1856, and he seems to have induced Oscar Peschel in 1858 to adopt the same views in his history of the range of modern discovery. Major, the map custodian of the British Museum, who had previously followed Navarrete in favouring the Grand Turk, again addressed himself to the problem in 1870, and fell into line with the adherents of Watling's. No other considerable advocacy of this island, if we except the testimony of Gerard Stein in 1883, in a book on voyages of discovery, appeared till Lieutenant J. B. Murdoch, an officer of the American navy, made a very careful examination of the subject in the Proceedings of the United States Naval Institute in 1884, which is accepted by Charles A. Schott in the Bulletin of the United States Coast Survey. Murdoch was the first to plot in a backward way the track between Guanahani and Cuba, and he finds more points of resemblance in Columbus's description with Watling's than with any other. The latest adherent is the eminent geographer, Clements R. Markham, in the bulletin of the Italian Geographical Society in 1889. Perhaps no cartographical argument has been so effective as that of Major in comparing modern charts with the map of Herrera, in which the latter lays Guanahani down.
An elaborate attempt to identity Samana as the landfall was made by the late Captain Gustavus Vasa Fox, in an appendix to the Report of the United States Coast Survey for 1880. Varnhagen, in 1864, selected Mariguana, and defended his choice in a paper. This island fails to satisfy the physical conditions in being without interior water. Such a qualification, however, belongs to the Grand Turk Island, which was advocated first by Navarrete in 1826, whose views have since been supported by George Gibbs, and for a while by Major.
It is rather curious to note that Caleb Cushing, who undertook to examine this question in the North American Review, under the guidance of Navarrete's theory, tried the same backward method which has been later applied to the problem, but with quite different results from those reached by more recent investigators. He says, “By setting out from Nipe which is the point where Columbus struck Cuba and proceeding in a retrograde direction along his course, we may surely trace his path, and shall be convinced that Guanahani is no other than Turk's Island.”