ABSTRACT
The subject of climatology is intimately interwoven with the affairs of everyday life. Climate limits the choice of crops and therefore the local production of food; and climate determines the site for the cultivation of those other foodstuffs and raw materials of industry which modern life demands; this climatic control of production and requirements is one of the bases of the world’s trade. In every climate the life habits of the natives have been regulated, often after many bitter experiences, in accordance with prevailing conditions. Factors and elements of climate are clearly of two kinds, the first mathematically determined and therefore constant, the second variable and unreliable. Weather types are the integrals which go to make up the climatic whole, and there is a danger of their losing their individuality unless climate is carefully examined, as it were microscopically, to appreciate its texture.
