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A preliminary investigation of the determination of ionic mobilities by conductometric titration

  • Authors: Festenstein, Gerald Norman
  • Date: 1947
  • Subjects: Ionic mobility , Conductometric analysis
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4472 , http://hdl.handle.net/10962/d1011810 , Ionic mobility , Conductometric analysis
  • Description: The determination of ionic mobilities by conductometric titration was first suggested by Barker, Rowler and Shuttleworth in discussing the theory of conductometric titration of acids, bases and neutral salts. Intro. p. 1.
  • Full Text:
  • Date Issued: 1947

A report on the comparative performance of coloured and European factory workers on four tests of ability

  • Authors: Gough, Margaret Frances
  • Date: 1947
  • Subjects: Cross-cultural psychology , Employees -- South Africa , Colored people (South Africa) -- Psychology
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3246 , http://hdl.handle.net/10962/d1014980
  • Description: This thesis is a report on the results or four psychological tests, applied to two groups or workers in Port Elizabeth factories; the one group consisting of European, the other of Coloured workers. The abilities selected for testing were believed to be necessary, to some extent, in certain Industrial operations.
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  • Date Issued: 1947

A study of the comparative anatomy of the lateral compound eyes of arthropods

  • Authors: Glaholm, J
  • Date: 1947
  • Subjects: Arthropoda -- Anatomy
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5908 , http://hdl.handle.net/10962/d1014966
  • Description: In this thesis the interest has centered mainly on the comparative anatomy of the lateral eyes of Arthropods especially the compound eyes, with some particular reference to those of Chilopoda. The comparative anatomy of the eyes of Chilopoda seemed to be of interest, since they possess in most cases simple lateral eyes, which are not characteristic of the adults of any other group of Arthropoda, except Arachnids, to which the Chilopoda are only remotely related In a few cases - in the Scutigeridae - "compound" eyes are present, which are very unusual in their internal anatomy. The following possibilities with regard to the relationships of the Chilopod eyes present themselves. The simple eyes may be the products of degeneration of a compound eye. Alternatively they may be ocelli of a very primitive pre-compound eye type, persisting where in some cases a compound eye has failed to develop. As a third possibility they may have been separately evolved in forms, in which the compound eye was lost or failed to develop. In the last case they would appear to be unrelated to those of any other Arthropods, except possibly those of Diplopods, to which they are very similar in structure. The "compound" eyes may be or the same type as the compound eyes in the remaining Arthropods, with the differences due to degeneration, or to specialisation. Alternatively they may be of a separate type and formed secondarily, either as a single new structure. or a coalescence of ocelli. The enquiry into the interrelationship of these eyes and their relation to the eyes of other Arthropoda raises several points for investigation. For the compound eyes it is necessary to decide whether they were primarily present in the ancestors of some or all of the classes or Arthropods, and whether they have a common or more or less diverse origin with some evolutionary convergence. For the lateral simple eyes it is necessary to decide whether there are any indications in phylogeny, ontogeny or anatomy of the primitive or secondary formation of a compound eye by the aggregation of numerous ocelli or the elaboration of one or these. Such information might be expected to throw light on the origin of the Scutigerid eye. Alternatively any indications of the formation of simple from compound eyes might show whether the Chilopod simple eyes could have evolved in this way from a Scutigerid or some other compound eye. Median eyes are present in some Trilobites, Eurypterida, Crustacea, Hexapods and Arachnida. Although they exhibit considerable variations in structure, they are all clearly simple eyes. As they are absent in Chilopoda and in the remaining Arthropods are entirely separate in origin from the lateral eyes, with a separate seat of innervation, their comparative anatomy is of little interest in this case. The main portion of the thesis deals with the comparative anatomy, origins and relationships of the different types of compound lateral eyes. The second part comprises a short appendix dealing with similar aspects of the lateral ocelli. Detailed descriptions and figures have been given for the eyes of eight species. Some mention is also made of points observed in the internal or external anatomy of species which were studied in less detail. The theoretical conclusions are based on material from the available literature and from these descriptions.
  • Full Text:
  • Date Issued: 1947

Aka Sabala

Akabala

Akabala

Albany Rugby Football Club Trophies Won, 1947

  • Date: 1947
  • Subjects: Rugby football -- South Africa -- Eastern Cape -- Photographs , Albany Rugby Football Club -- Photographs
  • Type: still image
  • Identifier: http://hdl.handle.net/10962/51263 , vital:26075 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 6736
  • Description: Albany Rugby Football Club Trophies Won 1947, Group photograph of the Executive Committee, all wearing suits, Black and white photograph, Indoor photograph, Men standing have arms by their sides, Men sitting have arms in their laps, Row of trophy cups displayed in front of the Executive Committee, Standing: L. B. Green (Secretary), T. C. Mills (Captain), W. Steyn (Vice Captain), J. B. Norton (Treasurer), Sitting: H. L. Connock (Selector), C. Fortune, M. J. Ansley (President), S. J. Hunter, C. J. Dale (Selector), Insets: A. C. Keey (Club Captain), T. van Vuuren (Late President).
  • Full Text: false
  • Date Issued: 1947

Albany Rugby Football Club Trophies Won, 1947

  • Date: 1947
  • Subjects: Rugby football -- South Africa -- Eastern Cape -- Photographs , Albany Rugby Football Club -- Photographs
  • Type: still image
  • Identifier: http://hdl.handle.net/10962/51367 , vital:26086 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 6735
  • Description: Albany Rugby Football Club Trophies Won 1947, Group photograph of the Executive Committee, all wearing suits, Black and white photograph, Indoor photograph, Men standing have arms by their sides, Men sitting have arms in their laps, Row of trophy cups displayed in front of the Executive Committee, Standing: L. B. Green (Secretary), T. C. Mills (Captain), W. Steyn (Vice Captain), J. B. Norton (Treasurer), Sitting: H. L. Connock (Selector), C. Fortune, M. J. Ansley (President), S. J. Hunter, C. J. Dale (Selector), Insets: A. C. Keey (Club Captain), T. van Vuuren (Late President).
  • Full Text: false
  • Date Issued: 1947

Albany Rugby Football Club, 1947

  • Date: 1947
  • Subjects: Rugby football -- South Africa -- Eastern Cape -- Photographs , Albany Rugby Football Club -- Photographs
  • Type: still image
  • Identifier: http://hdl.handle.net/10962/44972 , vital:25456 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 6728
  • Description: Albany Rugby Football Club 1947. Team photograph with rugby/football players, in rugby uniform, Group photograph, Indoor photograph, Black and white photograph, Players have arms crossed, Player sitting in the middle holding a rugby ball in his lap, Four trophy cups displayed in front of the sitting players, Five men, two standing and three sitting, where suits.
  • Full Text: false
  • Date Issued: 1947

Alice at the time of the Royal visit - 1947

  • Date: 1947
  • Subjects: Alice (South Africa) -- History -- Photographs , Royal visit -- South Africa
  • Type: Image
  • Identifier: http://hdl.handle.net/10962/10797 , vital:21630 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 5200
  • Full Text: false
  • Date Issued: 1947

Alice Royal visit horse parade

Alice Royal visit train station anticipation

Bayeza obaba

Brown skin girl

Canterbury Common Room 1947

Ceremony with Rev. Blaxall Part 2

Ceremony with Rev. Blaxall Part 2

College Tennis Team 1947

Dirty old town

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