The same River is also accounted the greatest of the earth, called therefore Fluviorum pater, and totius Orbis maximus, by Ortelius: If this be true, many Maps must be corrected, or the relations of divers good Authors renounced.
For first, In the deliniations of many Maps of Africa, the River Niger exceedeth it about ten degrees in length, that is, no less then six hundred miles. For arising beyond the Æquator it maketh Northward almost 15 degrees, and deflecting after Westward, without Meanders, continueth a strait course about 40 degrees; and at length with many great currents disburdeneth it self into the Occidental Ocean. Again, if we credit the descriptions of good Authors, other Rivers excell it in length, or breadth, or both. Arrianus in his history of Alexander, assigneth the first place unto the River Ganges; which truly according unto latter relations, if not in length, yet in breadth and depth may be granted to excell it. For the magnitude of Nilus consisteth in the dimension of longitude, and is inconsiderable in the other; what stream it maintaineth beyond Syene or Asna, and so forward unto its original, relations are very imperfect; but below these places, and farther removed from the head, the current is but narrow, and we read in the History of the Turks, the Tartar horsemen of Selimus swam over the Nile from Cairo, to meet the forces of Tonumbeus. Baptista Scortia expresly treating hereof, De natura et incremento Nili. preferreth the River of Plate in America; for that as Maffeus hath delivered, falleth into the Ocean in the latitude of forty leagues; and with that source and plenty that men at Sea do tast fresh water, before they approach so near as to discover the land. So is it exceeded by that which by Cardan is termed the greatest in the world, that is the River Oregliana in the same continent; which as Maginus delivereth, hath been navigated 6000 miles; and opens in a chanel of ninety leagues broad; so that, as Acosta, an ocular witness recordeth, they that sail in the middle, can make no land of either side.
Now the ground of this assertion was surely the magnifying esteem of the Ancients, arising from the indiscovery of its head. For as things unknown seem greater then they are, and are usually received with amplifications above their nature; so might it also be with this River, whose head being unknown and drawn to a proverbial obscurity, the opinion thereof became without bounds; and men must needs conceit a large extent of that to which the discovery of no man had set a period. And this an usual way to give the superlative unto things of eminency in any kind; and when a thing is very great, presently to define it to be the greatest of all. Whereas indeed Superlatives are difficult; whereof there being but one in every kind, their determinations are dangerous, and must not be made without great circumspection. The greatest Cities of the World. So the City of Rome is magnified by the Latines to be the greatest of the earth; but time and Geography informs us, that Cairo is bigger, and Quinsay in China far exceedeth both. The highest Hills. So is Olympus extolled by the Greeks, as an hill attaining unto heaven; but the enlarged Geography of aftertimes makes slight account hereof, when they discourse of Andes in Peru, or Teneriffa in the Canaries. And we understand by a person who hath lately had a fair opportunity to behold the magnified mount Olympus, that it is exceeded by some peakes of the Alpes. So have all Ages conceived, and most are still ready to swear, the Wren is the least of Birds; yet the discoveries of America, and even of our own Plantations have shewed us one far less; that is, the Humbird,Tomineio. not much exceeding a Beetle. And truly, for the least and greatest, the highest and the lowest of every kind, as it is very difficult to define them in visible things, so is it to understand in things invisible. Thus is it no easie lesson to comprehend the first matter, and the affections of that which is next neighbour unto nothing, but impossible truly to comprehend God, who indeed is all in all. For things as they arise unto perfection, and approach unto God, or descend to imperfection, and draw nearer unto nothing, fall both imperfectly into our apprehensions; the one being too weak for our conceptions, our conceptions too weak for the other.
Thirdly, Divers conceptions there are concerning its increment or inundation. The first unwarily opinions, that this encrease or annual overflowing is proper unto Nile, and not agreeable unto any other River; which notwithstanding is common unto many Currents of Africa. For about the same time the River Niger and Zaire do overflow; and so do the Rivers beyond the mountains of the Moon, as Suama, and Spirito Santo. And not only these in Africa, but some also in Europe and Asia; for so it is reported of Menan in India, and so doth Botero report of Duina in Livonia; and the same is also observable in the River Jordan in Judea; for so is it delivered, that Jordan overfloweth all his banks in the time of harvest.
The effect indeed is wonderful in all, and the causes surely best resolvable from observations made in the Countries themselves, the parts through which they pass, or whence they take their Original. That of Nilus hath been attempted by Many, and by some to that despair of resolution, that they have only referred it unto the Providence of God, and his secret manuduction of all things unto their ends. The cause of the overflowing of Nilus. But divers have attained the truth, and the cause alledged by Diodorus, Seneca, Strabo, and others, is allowable; that the inundation of Nilus in Egypt proceeded from the rains in Æthiopia, and the mighty source of waters falling towards the fountains thereof. For this inundation unto the Egyptians happeneth when it is winter unto the Æthiopians; which habitations, although they have no cold Winter (the Sun being no farther removed from them in Cancer, then unto us in Taurus) yet is the fervour of the air so well remitted, as it admits a sufficient generation of vapors, and plenty of showers ensuing thereupon. This Theory of the Ancients is since confirmed by experience of the Moderns; by Franciscus Alvarez, who lived long in those parts, and left a description of Æthiopia; affirming that from the middle of June unto September, there fell in his time continual rains. As also Antonius Ferdinandus, who in an Epistle written from thence, and noted by Codignus, affirmeth, that during the winter, in those Countries there passed no day without rain.
Now this is also usual, to translate a remarkable quality into a propriety, and where we admire an effect in one, to opinion there is not the like in any other. With these conceits do common apprehensions entertain the antidotal and wondrous condition of Ireland; conceiving only in that land an immunity from venemous creatures: but unto him that shall further enquire, the same will be affirmed of Creta, memorable in ancient stories, even unto fabulous causes, and benediction from the birth of Jupiter. The same is also found in Ebusus or Evisa, an Island near Majorca upon the coast of Spain. With these apprehensions do the eyes of neighbour Spectators behold Ætna, the flaming mountain in Sicilia; but Navigators tell us there is a burning mountain in Island, a more remarkable one in Teneriffa of the Canaries, and many Vulcano’s or fiery Hils elsewhere. Thus Crocodiles were thought to be peculiar unto Nile, and the opinion so possessed Alexander, that when he had discovered some in Ganges, he fell upon a conceit he had found the head of Nilus; but later discoveries affirm they are not only in Asia and Africa, but very frequent in some rivers of America.
Another opinion confineth its Inundation, and positively affirmeth, it constantly encreaseth the seventeenth day of June; wherein perhaps a larger form of speech were safer, then that which punctually prefixeth a constant day thereto. For this expression is different from that of the Ancients, as Herodotus, Diodorus, Seneca, etc. delivering only that it happeneth about the entrance of the Sun into Cancer; wherein they warily deliver themselves, and reserve a reasonable latitude. So when Hippocrates saith, Sub Cane et ante Canem difficiles sunt purgationes: There is a latitude of days comprised therein; for under the Dog-star he containeth not only the day of its ascent, but many following, and some ten days preceeding. So Aristotle delivers the affections of animals: with the wary terms of Circa, et magna ex parte: and when Theodorus translateth that part of his, Coeunt Thunni et Scombri mense Februario post Idus, pariunt Junio ante Nonas: Scaliger for ante Nonas, renders it Junii initio; because that exposition affordeth the latitude of divers days: For affirming it happeneth before the Nones, he alloweth but one day; that is the Calends; for in the Roman account, the second day is the fourth of the Nones of June.
Again, Were the day definitive, it had prevented the delusion of the devil, nor could he have gained applause by its prediction; who notwithstanding (as Athanasius in the life of Anthony relateth) to magnifie his knowledge in things to come, when he perceived the rains to fall in Æthiopia, would presage unto the Egyptians the day of its inundation. And this would also make useless that natural experiment observed in earth or sand about the River; by the weight whereof (as good Authors report) they have unto this day a knowledge of its encrease.
Lastly, It is not reasonable from variable and unstable causes, to derive a fixed and constant effect, and such are the causes of this inundation, which cannot indeed be regular, and therefore their effects not prognosticable like Eclipses. For depending upon the clouds and descent of showers in Æthiopia, which have their generation from vaporous exhalations, they must submit their existence unto contingencies, and endure anticipation and recession from the movable condition of their causes. And therefore some years there hath been no encrease at all, as some conceive in the years of Famin under Pharaoh, as Seneca, and divers relate of the eleventh year of Cleopatra; nor nine years together, as is testified by Calisthenes. Some years it hath also retarded, and came far later then usually it was expected, as according to Sozomen and Nicephorus it happened in the days of Theodosius; whereat the people were ready to mutiny, because they might not sacrifice unto the River, according to the custom of their Predecessors.