THE CLIMATIC ZONES AND THEIR SUBDIVISIONS 19 Classification by latitude circles: the five classic zones; _klima_ as used by the Greeks; Ptolemy’s climates; Parmenides; Polybius; Posidonius; Aristotle; Eudoxus; Strabo; Hippocrates—Temperature zones: Supan; Köppen; Gebelin—Wind zones: Davis; Woeikof—Summary and conclusions—Necessary subdivisions of the zones.