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  • CSIR (CSIR, 1969)
    This report presents the twenty fifth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1969, to the 31st December 1969. Balance sheets and statements ...
  • Strydom, ESP; Wehmeyer, AS (South African Medical Association, 1969-12)
    Freeze-dried samples are used for analysis and the methods of preparation of samples for freeze-drying are discussed. Freeze-drying has obvious advantages but has also a few minor disadvantages. Difficulties encountered ...
  • Giffen, MH (1970)
    During a visit to Cape town in December 1967, the opportunity was sized to visit the sea shore at Sea point, a suburb and seaside resort near Cape Town, For the purpose of obtaining fertile class material of Laminaria, ...
  • Chutter, FM (1970)
    Vaal Dam is situated on the elevated plateau which forms the interior of South Africa and is a little less than 1500 m above the level. The source of the most of the streams and rivers flowing into the dam are about 2000 ...
  • Funke, JW (CSIR, 1970)
    One of the most important commodities used in any food-processing industry is water which must be of the right quality. Water which comes into direct contact with milk or milk products must meet standards which are even ...
  • CSIR (CSIR, 1970)
    This report presents the twenty sixth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1970, to the 31st December 1970. Balance sheets and statements ...
  • Archibald, REM (1971)
    The Vaal Dam is of great importance to South Africa as it ensures a good supply of water to the Witwatersrand complex, South Africans most important industrial and mining centre, and the problem of pollution and protection ...
  • Chutter, FM (1971)
    A general description of the study area be found in part 1(Chutter, 1970), where the fauna other than Cladocera and Copera of store-in-current, marginal vegetation and story backwater has been described. It was found that ...
  • Giffen, MH (1971)
    The Gordon’s Bay region occupies the North western corner of false Bay, a large rectangular bay, bounded on the west by the Cape Peninsula ending at Cape Point, on the east by the precipitous slope of the Steenbras Mountains ...
  • CSIR (CSIR, 1971)
    This report presents the twenty seventh annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1971, to the 31st December 1971. Balance sheets and statements ...
  • Schoeman, FR (1972)
    The systematics and autecology of the diatoms observed in an algal sample from a maturation pond of the Walvis Bay (south west African coast) sewage works are discussed. Fourteen diatoms species are recorded. A new specie, ...
  • CSIR (CSIR, 1972)
    This report provides highlights on the activities and achievements of CSIR in the year 1972. An outline of the CSIR structure and financial statements are also presented in the report.
  • Donaldson, GW; Billingham, PA (1973)
    The words ‘built on a firm foundation' have become part of the language and most people would unhesitatingly agree that a house has to have a foundation' without perhaps understanding exactly why. If one were to place an ...
  • Jobson, AJ (CSIR, 1973)
    A number of rumble installations have been constructed on rural roads in South Africa and although no local accident data are available the provincial roads engineers consider them of value in alerting drives to the need ...
  • Ferreira, T.M; Billingham, P.A (1973)
    The difference between sound and noise varies from one human being to another. Noise, then, is simply unwanted sound and to understand how it can be combatted we must know more about its nature. A guide of acceptable levels ...
  • Malcolm, HG (1973)
    In a series of previous investigation of the marine littoral of the South African coast, the author has made observations at the various localities along the shores of the Eastern Cape Province. All these stations are ...
  • CSIR (CSIR, 1973)
    This report provides highlights on the activities and achievements of CSIR in the year 1973. An outline of the CSIR structure and financial statements are also presented in the report.
  • Lotz, F.J; Billingham, P.A (NBRI/CSIR, 1974)
    Too many people need to switch on the air-conditioning every time the sun comes up and light a fire as soon as it does down again. The sun is a wonderful source of energy that comes free of charge to all of us.
  • CSIR (CSIR, 1974)
    This report provides highlights on the activities and achievements of CSIR in the year 1974. An outline of the CSIR structure and financial statements are also presented in the report.
  • Nupen, EM (1974-06)
    This paper attempts to assess the present and future needs for such waters and the virus risk involved in their usage.