The Astronomers consent that the Sunne descending from our vpper hemisphere at the 18 parallel vnder the horizon maketh an end of twilight, so that at length the darke night insueth, and that afterward in the morning the Sun approching againe within as many parallels, doth driue away the night by accesse of the twilight.  Againe, by the position of the sphere vnder the pole, the horizon, and the equinoctiall are all one.  These reuolutions therefore that are parallel to the equinoctiall are also parallel to the horizon, so that the Sunne descending vnder that horizon, and there describing certaine parallels not farre distant, doth not bring darke nights to those regions vntill it come to the parallels distant 18 degrees from the equinoctiall, that is, about the 21 degree of Scorpio, which will be about the 4 day of our Nouember, and after the Winter solstitium, the Sunne returning backe againe to the 9 degree of Aquarius, which will be about the 19 of January; [Sidenote:  The regions vnder the poles want twilights but sixe weeks.] during which time onely, that is, from the 4 day of Nouember vntill the 19 day of Ianuary, which is about six weeks space, these regions do want the commodity of twilights:  therefore, during the time of these sayd six moneths of darknesse vnder the poles, the night is destitute of the benefit of the Sunne and the sayd twilights onely for the space of six weeks or thereabout.  And yet neither this time of six weeks is without remedy from heauen; for the Moone with her increased light hath accesse at that time, and illuminateth the moneths lacking light euery one of themselues seuerally halfe the course of that moneth, by whose benefit it commeth to passe that the night named extreame darke possesseth those regions no longer then one moneth, neither that continually, or all at one time, but this also diuided into two sorts of shorter nights, of the which either of them indureth for the space of 15 dayes, and are illuminate of the Moone accordingly. [Sidenote:  Winter nights vnder the pole tolerable to liuing creatures.] And this reason is gathered out of the sphere, whereby we may testifie that the Summers are warme and fruitfull, and the Winters nights vnder the pole are tolerable to liuing creatures.  And if it be so that the Winter and time of darknesse there be very colde, yet hath not nature left them vnprouided therefore:  for there the beastes are couered with haire so much the thicker in how much the vehemency of colde is greater; by reason whereof the best and richest furres are brought out of the coldest regions.  Also the fowles of these colde countreys haue thicker skinnes, thicker feathers; and more stored of downe then in other hot places.  Our English men that trauell to S. Nicholas, and go a fishing to Wardhouse, enter farre within the circle Artike, and so are in the frozen Zone, and yet there, aswell as in Island and all along those Northern Seas, they finde the greatest store of the greatest fishes that are; as Whales, &c. and also abundance of meane fishes; as Herrings, Cods, Haddocks, Brets, &c. which argueth that the sea as well as the land may be and is well frequented and inhabited in the colde countreys.