List of Titles

The Patchway Gold Mine : a mineragraphic and petrographic examination of ore from the Patchway Gold Mine, Rhodesia, and an appraisal of the relationship between gold mineralisation and geological structure

- Ward, J H W

Authors: Ward, J H W
Date: 1969
Subjects: Gold ores -- Geology -- Zimbabwe , Petrology -- Zimbabwe , Geology -- Zimbabwe , Ores -- Zimbabwe , Gold mines and mining -- Zimbabwe
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:5069 , http://hdl.handle.net/10962/d1013471
Description: A remarkable correlation between hydrothermal gold mineralisation and geological structure is discussed. The mineralisation occurs in vein quartz which occupies a fissure in Archaean greenstones of the Basement Complex in Rhodesia, It has been determined that gold which is silver-rich is typical of low-grade ore, and is associated in space with sulphides that crystallised early in paragenesis. Silver-poor gold is characteristic of highgrade ore which is concentrated along the crestal zone of anticlinal warps in the fissure. It is suggested that the local pattern of fracturing and folding is related to fundamental wrench faulting.
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Date Issued: 1969

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The production and marketing of South African Maize since 1910, with special reference to the years 1954 to 1966

- Brits, Rudolph Nieuwoudt

Authors: Brits, Rudolph Nieuwoudt
Date: 1969
Subjects: South Africa. Maize Board , Corn industry -- South Africa , Corn -- South Africa -- Marketing , Corn -- South Africa -- Marketing -- Government policy
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:1104 , http://hdl.handle.net/10962/d1013386
Description: From Introduction: There is no evidence available that maize was known in the old world in ancient times. Seeds of barley and wheat have been found in ancient near eastern sites, but never has there been any trace of maize at all. Furthermore, maize as a plant is not mentioned in the Bible, and neither Greek nor Chinese literature makes any reference to maize. There is, therefore, nothing that suggests that maize was known in the Old world before about 1492. However, at that time, Christopher Columbus returned with a report about a new grain called "Maiz". At a later date explorers visiting America found that maize was being grown and consumed by the Red Indians in places as far apart as Canada and Chile. The consensus of opinion is, therefore, that maize originated in America and was only subsequently imported into Europe. However, in a very excellent paper, Dr. M.D.W. Jeffreys comes to the very convincing conclusion that "Maize, a non-self-propagating American plant, was introduced to east African littorals before the Portuguese rounded the Cape and was seen by the Chinese navigators at Melinde Circa 1414… Maize was brought to the Indian Ocean littorals by Arabs before 1400. Maize was brought into southern Africa by the Nguni by 1400 and later by the baVenda. Maize was introduced by the Dutch in 1658. There is no evidence that maize was introduced by the Portuguese. Irrespective of the exact date when maize was introduced into South Africa, it was only from the year 1840 that there was any real agricultural development in South Africa. At this date, all those who had participated in the Great Trek had more or less settled down, and substantial areas were planted with wheat, maize and oats.
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Date Issued: 1969

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The theory and practice of "Klangreihenkomposition"

- Nowotny, Norbert W

Authors: Nowotny, Norbert W
Date: 1969
Subjects: Hauer, Josef Matthias, 1883-1959 , Music theory , Twelve-tone system , Musical intervals and scales , Tonality
Language: German
Type: Thesis , Doctoral , PhD
Identifier: vital:2693 , http://hdl.handle.net/10962/d1013394
Description: Diese Arbeit befaßt sich mit der "Klangreihenlehre'', einer Musiktheorie, die von Josef Matthias Hauer aufgestellt und von meinem Lehrer Othmar Steinbauer weiterentwickelt wurde. Diese auf der Gesetzmäßigkeit der zwölf Töne beruhende Satzlehre hat jedoch mit der "Reihentechnik" jener Musik, die schlechthin als "Zwölftonmusik" bezeichnet wird, nichts gemein. Obwohl eine beachtliche Literatur über J.M. Hauer vorliegt, ist sie doch, was Hauers Musiktheorie betrifft, nicht zufriedenstellend, da sie hauptsächlich auf sein Leben und seine Musikphilosophie eingeht.
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Date Issued: 1969

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The theory of economic underdevelopment and its applicability to the Rhodesian economy

- Clarke, Duncan G, 1948-

Authors: Clarke, Duncan G, 1948-
Date: 1969
Subjects: Zimbabwe -- Economic conditions , Economic development -- Zimbabwe , Developing countries -- Economic conditions
Language: English
Type: Thesis , Honours , BCom
Identifier: vital:1114 , http://hdl.handle.net/10962/d1014691
Description: According to the canons of conventional economic philosophy the process of economic interpretation should be value neutral and strictly fall within the bounds of normative science. This approach is concerned not with goal setting but only with the technical possibilities of alternative means of successful tactics in a given overall strategy. It is the author's thesis that such premises patently ignore the fundamental truths of development problems, and that there exists a genuine need to bridge the gap that demarcates theory from practicality and truth from illusion. To seek "development" implies a challenge to the "status quo" of menial existence and perpetual servitude to the inhospitable forces of ones own environment. This attitude is in itself a value judgement, and in underdeveloped societies it is more than a mere academic quibble. Accordingly, this paper not only implicitly assumes "development" to be a desirable goal but also that it is necessary, and the objective of this study of an underdeveloped community shall be to examine the theoretical relevance, or otherwise, of general and partial theories of underdevelopment against the quantitative and qualitative evidence of the course of events that have in the past, and are likely in the future, to influence the development of the "Rhodesian economy".
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Date Issued: 1969

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Theoretical aspects of the reaction of zirconium compunds and vegetable tannins with the chromium-collagen complex

- Williams-Wynn, David Ernest Arthur

Authors: Williams-Wynn, David Ernest Arthur
Date: 1969
Subjects: Zirconium compounds , Collagen , Chromium compounds , Tannins
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:4512 , http://hdl.handle.net/10962/d1013455
Description: Studies have been made of the reactions which take place when zirconium compounds and vegetable tannins react with chromium tanned leather, in order to elucidate the mechanisms of the reactions which occur on retannage. Statistical procedures have been used in all investigations because of the variable nature of the substrate, and computer techniques have been applied to the repetitive statistical computations. Although chromium and vegetable tannages are well understood, further information on the reaction of zirconium with collagen was necessary before attempting to interpret the results of the studies of combination tannages with chromium, and this has been obtained by a comparative study of the reactions of chromium and zirconium with modified collagen. It is concluded that the mechanism of the reaction of basic zirconium sulphate with collagen is multipoint attachment of the tanning material by residual valency forces, although charge effects with basic groups may be supplementary. Zirconyl chloride reacts with carboxyl groups but does not form satisfactory, stable cross-links with collagen. Further evidence for this theory was obtained from the investigation of the reaction of zirconium compounds with chromium tanned collagen. Zirconyl sulphate does not interfere with effective chromium tannage and therefore can have little affinity for the carboxyl groups on the protein, but it displaces chromium complexes loosely held by auxiliary valencies without reducing the shrinkage temperature of the chromium leather Zirconyl chloride, although only fixed to a limited extent, apparently forms co-ordination compounds with the carboxyl groups, disrupting the chromium tannage because there is an over-all loss of hydrothermal stability. There is no evidence that zirconium co-ordinates with, or releases acid from chromium-collagen complexes, since combination chromium/zirconium tanned leathers are stable on storage. Retannage of chromium tanned leather with vegetable tanning materials generally results in loss of strength and a product which tends to deteriorate on ageing. Lower initial strength is probably due to the increased avidity of chromium tanned pelt for vegetable tannins, resulting from the liberation of internally neutralised reactive sites which are not normally available in vegetable tannage, and from the co- ordination of vegetable tannins and non-tannins to the chromium complex with the displacement of sulphate radicals. From a study of the retannage of chromium tanned modified collagen, it appears that basic groups probably play an important part in the rapid absorption of vegetable tannin. These reactions result in overloading of the fibre and an increased number of cross-links, both of which tend to produce weak leather. Deterioration with age is primarily a hydrolytic degradation of the protein which is catalysed by acid liberated from the chromium complexes by the entry of vegetable tannins, those factors which favour the formation of acid causing greater and more rapid deterioration.
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Date Issued: 1969

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Wood-wind instruments at the cross-roads : a survey of recent changes

- Honey, Albert Edward

Authors: Honey, Albert Edward
Date: 1969
Subjects: Woodwind instruments Woodwind instruments -- History
Language: English
Type: Thesis , Masters , MMus
Identifier: vital:2685 , http://hdl.handle.net/10962/d1012331
Description: Since the rise of the "Stile Rappresentative" early in the seventeenth century, the composer has made definite and increasing demands on specific performance and tonal combination of instrumentalists which has materially affected the developnent in technique and, consequently, the improvement in construction and design of every musical instrument. The monodic "Stile Rappresentative" required expressive instruments with an extensive range to match the singers and, consequently, many instruments of the Renaissance period were rendered obsolescent. For instance, the shawms, pommers and crumhorns disappeared from concerted music-making with the exception of military and outdoor use, mainly in German windbands. More flexible instruments were required, and thus cornetts, flutes (mainly recorders and fipple-flutes), oboes and bassoons came gradually into their places, which for the main part they have occupied in the orchestra ever since that time. The String sections, too, underwent radical changes. A gradual metamorphosis from the Consort of Viols to the Violin Family took place following the work of the craftsmen Gasparo da Salố (1540 - 1609) and Giovanni Paolo Maggini of Brescia, perfected by the famous Cremonese school founded by Andrea Amati and continued by Stradivarius.
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Date Issued: 1969

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Rhodeo, Vol. 22, No. 21

Date: 1968-10-10
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:14595 , http://hdl.handle.net/10962/d1019467
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: 1968-10-10

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Rhodeo, Vol. 22, No. 20

Date: 1968-09-19
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:14594 , http://hdl.handle.net/10962/d1019466
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: 1968-09-19

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Rhodeo, Vol. 22, No. 19

Date: 1968-09-12
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:14593 , http://hdl.handle.net/10962/d1019465
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: 1968-09-12

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Rhodeo, Vol. 22, No. 18

Date: 1968-09-05
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:14592 , http://hdl.handle.net/10962/d1019464
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: 1968-09-05

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Rhodeo, Vol. 22, No. 17

Date: 1968-08-29
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:14591 , http://hdl.handle.net/10962/d1019463
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: 1968-08-29

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Rhodeo, Vol. 22, No. 16

Date: 1968-08-22
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:14590 , http://hdl.handle.net/10962/d1019462
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: 1968-08-22

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Rhodeo, Vol. 22, No. 15

Date: 1968-08-15
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:14589 , http://hdl.handle.net/10962/d1019461
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: 1968-08-15

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Rhodeo, Vol. 22, No. 14

Date: 1968-08-08
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:14588 , http://hdl.handle.net/10962/d1019460
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: 1968-08-08

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Rhodeo, Vol. 22, No. 13

Date: 1968-06-13
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:14587 , http://hdl.handle.net/10962/d1019459
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: 1968-06-13

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Rhodeo, Vol. 22, No. 12

Date: 1968-06-06
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:14586 , http://hdl.handle.net/10962/d1019458
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: 1968-06-06

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Rhodeo, Vol. 22, No. 11

Date: 1968-05-30
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:14585 , http://hdl.handle.net/10962/d1019457
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: 1968-05-30

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Rhodeo, Vol. 23, No. 9

Date: 1968-05-29
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:14603 , http://hdl.handle.net/10962/d1019475
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: 1968-05-29

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