Neither in that land, nor in many others beyond it, may any man see the polar star, which is called the Star of the Sea, which is immoveable, and is towards the north, and which we call the load-star. But they see another star opposite to it, towards the south, which is called antarctic. And right as shipmen here govern themselves by the load-star, so shipmen beyond these parts are guided by the star of the south, which appears not to us. This star, which is towards the north, that we call the load-star, appears not to them. For which cause, we may clearly perceive that the land and sea are of round shape and form, because the part of the firmament appears in one country which is not seen inanother country. And men may prove by experience and their understanding, that if a man found passages by ships, he might go by ship all round the world, above and beneath; which I prove thus, after what I have seen. For I have been towards the parts of Brabant, and found by the astrolabe[376] that the polar star is fifty-three degrees high; and further, in Germany and Bohemia, it has fifty-eight degrees; and still further towards the north it is sixty-two degrees and some minutes; for I myself have measured it by the astrolabe. Now you shall know that opposite the polar star is the other star, called antarctic, as I have said before. These two stars are fixed; and about them all the firmament turns as a wheel that turns on its axle-tree; so that those stars bear the firmament in two equal parts; so that it has as much above as it has beneath. After this I have gone towards the south, and have found, that in Lybia we first see the antarctic star; and I have gone so far in those countries that I have found that star higher, so that, towards Upper Lybia, it is eighteen degrees and certain minutes. After going by sea and land towards the country of which I spoke last, and to other isles and lands beyond that country, I have found the antarctic star thirty-three degrees in altitude, and some minutes. And if I had had company and shipping to go further, I believe certainly that we should have seen all the roundness of the firmament all about. For, as I have told you before, the half of the firmament is between the two stars, which half I have seen. And the other half I have seen towards the north, under the polar star, sixty-two degrees and ten minutes; and, towards the south, I have seen under the antarctic thirty-three degrees and sixteen minutes; and the half of the firmament in all contains but one hundred and eighty degrees, of which I have seen sixty-two on the one part, and thirty-three on the other, which makes ninety-five degrees, and nearly the half of a degree; so that I have seen all the firmament except eighty-four degrees and the half of a degree; and that is not the fourth part of the firmament. By which I tell you, certainly, that men may go all round the world, as well under as above, and return to their country, if they had company, and