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  • Mean data from 200 stations in South Africa have been used to determine month-by-month rainfall changes. From this the progress of both the Summer and Winter rainfall seasons is traced. (W. A. Nieman).
  • to similar approaches in other disciplines, and its importance to South African geography are considered| and a review of some important literature in the field is incorporated into the discussion. (W. A. Nieman).
  • Two years'upper air data have been analysed to determine the water vapour content of the atmosphere over South Africa. Certain consistent features are displayed on a harmonic dial. (W. A. Nieman).