And here Dante describes an evidently spherical world... "The lamp of the world [the sun] rises to mortals through different passages; but through that which joins four circles with three crosses [the position of the rising sun at the vernal equinox] it issues with a better course and conjoined with better stars, and tempers and stamps the wax of the world more after its own fashion. Although such an outlet had made morning there and evening here, and all the hemisphere there was bright, and the other dark..."
In that part of the book of my memory before the which is little that can be read, there is a rubric, saying, Incipit Vita Nova. Under such rubric I find written many things; and among them the words which I purpose to copy into this little book; if not all of them, at the least their substance.
If i thought i was replying to someone who would every return to the world, this flame would cease it's flickering. But since no one has returned from these depths alive, if what I've heard is true, I will answer you without fear of infamy.