ABSTRACT
The almost unlimited combinations of climatic factors acting on an almost infinite variety of topography produce a bewildering number of geographical climates, and it is clear that any system of classification adopted can recognize only the broadest types unless it is to become unwieldy. The Galifornian Mediterranean climate also becomes ‘temperate’, being grouped with the cool temperate climate of British Columbia. Cape Town and Swanland, too, are excluded from the sub-tropical climates. The summer rains of continental interiors are well suited to grassland, but the prolonged winter drought makes these areas unfavourable for trees which, generally speaking, prefer maritime or sub-continental climates with their more regular moisture supply. The former is more important in low latitudes and will be used to subdivide the hot climates, the latter is more important in high latitudes and will be used to subdivide the temperate and cold climates.
