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Erythrina caffra - kaffirboom

- Skead, C J (Cuthbert John)

Authors: Skead, C J (Cuthbert John)
Date: 1975-08-25
Subjects: Erythrina caffra- South Africa -- Photographs , Trees -- South Africa -- Photographs
Language: English
Type: mixed material , photographs , clippings
Identifier: http://hdl.handle.net/10962/119893 , vital:34796
Description: Caption "Indigenous timber to be sold. Herald Correspondent. George. The annual sale of indigenous timber in the George and Knysna districts will start on October 13 at Woodville and be continued at Forleigh, Gondveld, Gouna, Diepwalle, Kafferkop, Kruisfontain and Bloukrans. The total estimated volumes in cubic metres of timber for sale are stinkwood 160, yellowwood 215, blackwood 760, white elder 47 and others 87. Prospective buyers can inspect the timber by making arrangements with the responsible officers of the Department of Forestry at the various staions. Payment must be in cash or by bank endorsed cheques either on the day of sale or within 30 days. All timber bought must be removed before December 31. Eastern Province Herald. 15 August 1975."
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Date Issued: 1975-08-25

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Rhodeo, Vol. 29, No. 6

Date: 1975-06-29
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14665 , http://hdl.handle.net/10962/d1019537
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1975-06-29

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Rhodeo, Vol. 29, No. 5

Date: 1975-05-29
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14664 , http://hdl.handle.net/10962/d1019536
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1975-05-29

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Systematics and distribution of eels of the Muraenesox group (Anguilliformes, Muraenesocidae): a preliminary report and key

- Castle, P H J (Peter Henry John), Williamson, Gordon R, Rhodes University. J.L.B. Smith Institute of Ichthyology

Authors: Castle, P H J (Peter Henry John) , Williamson, Gordon R , Rhodes University. J.L.B. Smith Institute of Ichthyology
Date: 1975-05
Subjects: Fishes -- Classification , Muraenesox -- Classification , Muraenesocidae -- Classification
Language: English
Type: text , book
Identifier: http://hdl.handle.net/10962/69746 , vital:29575 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 15 , A study of the eels which have been referred to Muraenesox McClelland clarifies taxonomic confusion in this group and shows it to contain three genera and seven species. M cinereus (Forsskål, 1775) occurs from the Red Sea across the Indian Ocean northwards to Japan . M. bagio (Hamilton, 1822) has a wider distribution from South Africa throughout the Indo-west Pacific north to Japan and south to Sydney. Congresox Gill is revived for C. talabon (Cuvier, 1829) and C. talabonoides (Bleeker, 1853) both of which occur in the central Indo-west Pacific. Cynoponticus Costa is represented by C. savanna (Bancroft, 1831) in the West Atlantic, C. ferox Costa, 1845 in the East Atlantic and Mediterranean and C. coniceps (Jordan and Gilbert, 1881) in the central East Pacific.
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Date Issued: 1975-05

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Rhodeo, Vol. 29, No. 4

Date: 1975-04-29
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14663 , http://hdl.handle.net/10962/d1019535
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1975-04-29

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Common and scientific names of the fishes of Southern Africa

- Smith, Margaret Mary, Jackson, P B N (Peter Brian Neville), Rhodes University. J.L.B. Smith Institute of Ichthyology

Authors: Smith, Margaret Mary , Jackson, P B N (Peter Brian Neville) , Rhodes University. J.L.B. Smith Institute of Ichthyology
Date: 1975-04
Subjects: Fishes -- South Africa -- Nomenclature , Fishes -- South Africa -- Nomenclature (Popular) , Fishes
Language: English
Type: text , book
Identifier: http://hdl.handle.net/10962/69731 , vital:29573 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 14 , This is in essence a checklist of the marine fishes occurring in the estuarine and coastal waters of southern Africa from the Kunene River in the west to Beira in the east. Deep sea fishes occurring below 200 metres or 100 fathoms are not included. The freshwater fishes from the Zambezi southwards will be published in Part 2. The scientific names, their spelling, authors and dates, have been carefully checked and brought into line with the most recent revisions available. However, the tremendous outpouring of scientific papers will make some scientific names obsolete even while this checklist is being printed. Also there will continue to be additions to the fauna and this, the first list to be published, must be regarded as a foundation on which subsequent lists can be based.
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Date Issued: 1975-04

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Rhodeo, Vol. 29, No. 3

Date: 1975-03-29
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14662 , http://hdl.handle.net/10962/d1019534
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1975-03-29

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Rhodeo, Vol. 29, No. 2

Date: 1975-02-29
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14661 , http://hdl.handle.net/10962/d1019533
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1975-02-29

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3324 Port Elizabeth

- Trigonometrical Survey (South Africa)

Authors: Trigonometrical Survey (South Africa)
Date: 1975
Subjects: 1 : 25000 30.5595° S, 22.9375° E , Port Elizabeth (South Africa) Maps , South Africa History 1910-1961 Maps
Language: English
Type: maps , digital maps , cartographic
Identifier: http://hdl.handle.net/10962/114510 , vital:33992 , Cory Library for Humanities Research, Rhodes University Library, Grahamstown, South Africa , MP755
Description: 3324 Port Elizabeth, South Africa 1:25000 sheet. Opgemeet in 1971 en geteken in 1972 deur die Direkteur-Generaal van Opmetings Kadastraal hersien 1974. Surveyed in 1971 and drawn in 1972 by the Director General of Surveys Cadastral revised 1974. T.S.O. 404/6646. Magisterial districts as at June 1975. Second edition. , Second
Full Text: false
Date Issued: 1975

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A 22 GHz water maser radiometer

- Nunn, Brian J

Authors: Nunn, Brian J
Date: 1975
Subjects: Masers , Radiometers
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:5535 , http://hdl.handle.net/10962/d1012987
Description: This thesis describes the properties of interstellar water maser sources, and other sources near 22 GHz. Calculations based on manufacturer's specifications of the 22 GHz mixer, which was to be used in a water radiometer, and on the size antenna aperture of the proposed antenna aperture, show the viability of constructing such a radiometer for spectral line and continuum work. Various sections of the radiometer were constructed, including the Cassegrain feed system and its support, an intermediate frequency amplifier and buffer, a timing control unit, and a data processor. These units are part of the radiometer, which is almost ready for observations of sources.
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Date Issued: 1975

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A computer analysis of some of the Harrison metrics

- Sadler, Christopher John

Authors: Sadler, Christopher John
Date: 1975
Subjects: Computer science -- Mathematics , Software measurement
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:5427 , http://hdl.handle.net/10962/d1013151
Description: In his paper B.K.Harrison concludes with the observation that his "solutions ... are presented as raw material for further research in General Relativity". In the same spirit, the present work started out as an attempt to process that raw material in a production-line powered by a computer. Harrison's solutions uould be fed in at one end, and the finished product, as yet undecided, would appear at the other. In the event, however, the project became more like an exercise in quality control, to continue the analogy. A search was made for algebraic criteria which would distinguish between those solutions which were acceptable for further analysis with particular regard to Gravitational radiation, and those which were not. Regrettably, no criteria could be found which characterised radiative solutions unequivocally, and, at the same time, lent themselves to a computer approach. The result is that the discussion of radiative solutions has had to be relegated to an appendix (Appendix 1), while the main body of the work is concerned with the determination of those quantities (the Newman-Penrose scalars) which would seem to be the foundation of any future computer-based analysis of gravitational radiation. Chapter 1 is an account of the underlying mathematical formulation, defining the terms, concepts and processes involved. In Chapter 2 the transformation of some of the ideas of Chapter 1 into computer software is presented. Chapter 3 is concerned with the specific metrics (the Harrison metrics) and the extent to which they have heen processed. The project has leaned heavily on papers by Harrison for the "raw material", by D' Inverno and Russell Clark, who pioneered the techniques and classified the Harrison metrics, and by Sachs for the treatment of gravitational radiation. However, the analysis of diagonal metrics, the special tetrad of Chapter 2 and the results in Appendix 2 are new.
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Date Issued: 1975

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A contribution to the understanding of the ethology of the cichlids of Southern Africa

- Ribbink, Anthony J

Authors: Ribbink, Anthony J
Date: 1975
Subjects: Cichlids -- Africa, Southern , Fishes -- Africa, Southern
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:5889 , http://hdl.handle.net/10962/d1013369
Description: Allopatric populations of Pseudocrenilabrus philander were found to differ in male breeding coloration. These colours are described and attention is drawn to the possibility that male coloration might prevent population hybridisation. Behaviour of the allopatric populations was studied in the laboratory. The execution of behaviour patterns of the various populations was found to be indistinguishable, and very similar to that of Haplochromis. Behaviour of P. philander was recorded in three morphologically different natural water bodies. Diurnal activities were found to follow a set rhythm. Though P. philander was shown to have adapted to a variety of habitats they retained their behavioural Components in an unchanged form. Field and laboratory observations are used to propose a behavioural mechanism for the natural regulation of population density. Although aggression between conspecific territorial Sarot herodon mossambicus habituated so that neighbours could live close to one another, it was found that P.philander are intolerant of their neighbours and are consequently forced apart. Though the execution of behaviour patterns was apparently identical for all populations of P. philander, field observations indicated that the frequency of performance differed. An experimental procedure was established to quantitatively compare the behaviour of various populations. As a result of comparative and choice chamber investigations, it is suggested that one of the four populations of P. philander would be unlikely to hybridise with the others if they were to become sympatric. These popUlations would be kept apart because of colour and behavioural differences. Differences of egg-size, fry-size, developmental and interbrood periods were also found, providing further evidence of incipient speciation. Evolutionary divergence of the allopatric populations of P. philander is discussed against a background of geological and geographical evidence. Consideration is given to the role of male coloration, ethological barriers and the importance of ethological differences to taxonomy. Behavioural evidence suggests that P. philander has closer affinities with the haplochromids than was initially realised. It is concluded that the clinal populations of P. philander should not be taxonomically separated, and it is argued that it would be premature to give the Kuruman population an elevated taxonomic status.
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Date Issued: 1975

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