Kitap 2
5.34
It now remains for us to speak of the climata.The climata are zones parallel to the equator. The ancients generally reckoned seven climata, which in the time of Hipparchus terminated at 48° 30′ 35″, where the longest day consisted of sixteen hours. He however multiplied these divisions and extended them farther towards the poles. It is a great pity that Strabo has not noted all of them. Of these too we shall give but a general description, commencing with those lines which we have denominated elementary, namely, those which determine the greatest length and breadth of the [habitable earth], but especially its breadth.
5.34
To enter fully into this subject is the duty of astronomers. This has been done by Hipparchus, who has noted down (as he says) the differences of the heavenly appearances for every degree of that quarter of the globe in which our habitable earth is situated, namely, from the equator to the north pole.
