3. Electronic Theses and Dissertations (ETDs) - All submissions

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Start date: 1939End date: 1959

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    The geology of the Otjosondu manganese area: south west Africa
    (1959) Roper, Harold
    Geological mapping and compilation of data from mining and prospecting operations in the Otjosondu area in South West Africa provided the information presented in this thesis. The geomorphology of the area is described and the general geology is discussed. Details of the complicated folding suffered by the Iamara rocks are presented. The petrology and petrography of' the outcropping representatives of the ancient sedimentary and intrusive rocks is described under the section on economic geology, interpretations of the complex structures of the ore bodies are presented. The mineralogy of the ores was studied by means of polished sections, X-ray diffraction and differential thermal analysis techniques. It is concluded from both field and laboratory evidence that these ores represent the metamorphosed equivalents of syngenetic manganese bearing sediments
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    A critical analysis of the Bantu pelvis, with special reference to the female.
    (1945) Heyns, O. S.
    The student of pelvic morphology is compelled sooner or later to consider the two main functions of the girdle, those of weight-bearing and parturition. These functions Inevitably guide his Investigations. Comparatively little work has been done on the pelvic mechanics of erect posture. The evolution of man's erect posture, on the other hand, has been considered by Friedenthal (1910), Weidenreich (1913), Keith (1923), Morton (1926), Westenhofer (1929), and Reynolds (1931)* The last author's disappointing paper succeeds only in demonstrating the difficulty of establishing the principles underlying the orthopaedist's approach to the mechanics of man's posture.
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    The missionaries on the eastern frontier of the Cape Colony, 1799-1853
    (1959) Williams, D
    This work attempts on the investigation into the activities of the missionaries of the Scottish (1), Wesleyan Methodist, and London Missionary Societies on the Eastern Frontier of the Cape Colony (2) during the years 1799-1853. The theme of the half-century is a triple failure: the failure to propagate Christianity among the amaXhosa, the failure to retain the goodwill of the colonists, and the failure to exercise significant political influence on the Cape administration. I have tried to explain why this occurred. There is a great need in South African historiography for detailed investigation into the contact between the missionaries and the Bantu. Missionary histories to date are of little value for an understanding of the problem of culture contact (J). With regard to the amaXhosa, there is no explanation, much less a frank admission, of the failure of the missionaries significantly to influence th4t race . Hitherto the tradition of missionary historiography has been to chronicle the increase of the number of mission institutions, and to accept this as evidence of the growth of Christianity as propagated by devoted and self-sacrificing missionaries. A re-assessment is long overdue. During and after the second half of the Nineteenth Century missionary circles were evaluating their achievements in Kaffirland, and were disappointed at the results. This missionary probe (4) has not been adequately reflected in contemporary South African missionary historiography. Of the missionary failure in Kaffirland, there is no doubt. Even today the amaXhosa is not a Christian nation. The publication of scurrilous attacks on missionaries in the form of pamphleteering literature (5) is symptomatic of the way in which such intellectual~ as are under the sway of Bantu Nationalism, is rejecting Christianity today (6). (Abbreviation abstract)
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    Iron storage in the neonatal period of the human infant
    (1950) Van Dongen, L. G. R.
    Iron is one of the vital elements of the human body. Without it respiration would be quite impossible. Haemoglobin, the transporter of oxygen throughout the body, has iron as an essential constituent, and it is in this protein complex that the greatest bulk of the metal is found. Iron also plays a very essential part in the respiration of the tissues, as it is a vital element in intracellular respiratory enzymes such as catalase, cytochrome, cytochrome oxidase, etc. Further it is found in the chromatin material of nuclei in the cells of all the tissues.
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    Radioiron absorption studies in idiopathic haemochromatosis, malnutritional cytosiderosis, and transfusional haemosiderosis
    (1953-05) Bothwell, T. H.
    The quantity of iron in the body is regulated largely by the amount absorbed from the gut as the body's capacity to excrete it seems to be very limited. However three conditions have been described in which enormous amounts of iron may accumulate. Such a finding is characteristic of idiopathic haemochromatosis, it is present in a proportion of malnourished South African and is seen also in cases of refractory anaemia treated over long periods with blood transfusions.
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