List of Titles

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A critical evaluation of the analytical method used for the separation and estimation of copper and nickel

- Sismey, J E

Authors: Sismey, J E
Date: 1948
Subjects: Copper -- Analysis , Nickel -- Analysis
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:4519 , http://hdl.handle.net/10962/d1014335
Description: [From Introduction]. This thesis deals with the determination of copper and nickel both separately and in each other's presence. The work is divided into two sections, one of which treats the subject from the theoretical side while the other contains an account of the practical work performed by the author. In the theoretical section, an attempt is made to summarise the better-known methods for the determination of copper and nickel, and at the same time, to incorporate such improvements, criticism and variations as have appeared in the literature. The subject is so vast that its summary in so short a space must necessarily be incomplete. Yoe and Server, for example, quote 111 references on the subject of the nickel-dimethylglyoxine with other ions. Only a fraction of the literature was available, and space permitted only a fraction of this to be abstracted in the following pages.
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Date Issued: 1948

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The economics of state assistance to agriculture with special reference to future policy in South Africa

- Threlfell, R L

Authors: Threlfell, R L
Date: 1948
Subjects: Agriculture and state -- South Africa
Language: English
Type: Thesis , Masters , MCom
Identifier: vital:1107 , http://hdl.handle.net/10962/d1013399
Description: [From the Introduction] The argument by which it is shown that, under a system of open competition, prices are determined in a way which secures to consumers a maximum aggregate of satisfaction consonant with the relative security of the means of production is the familiar material of many treatises on economics, and does not need to be repeated here. In Economics (as distinct from Politics) this argument provided in a simple form the logical justification for the advocacy of laissez faire in State policy during the early 19th century even though "it was the actual success of private enterprise and the inefficiency and corruption of Government control that caused laissez faire to be an acceptable policy". No-one, of course, contended that pure competition did in fact characterize the economic relations of the time. Quite the reverse. It was argued that if the hindrances to competition were removed, society as a whole would reap the benefits indicated by the theory.
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Date Issued: 1948

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

- Festenstein, Gerald Norman

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.
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Date Issued: 1947

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

- Gough, Margaret Frances

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

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

- Glaholm, J

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.
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Date Issued: 1947

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The high pressure catalytic hydrogenation of the tannin of black wattle (Acacia mollissima Willd)

- Silk, M H

Authors: Silk, M H
Date: 1947
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:21132 , http://hdl.handle.net/10962/6528
Description: From Introduction: The wattle industry in South Africa has, from its commencement in the middle of the last century, gradually assumed a position of increasing importance in the economic structure of the country. Apart from the provision of a valuable tanning extract for home use and for export, the tree itself has proved of considerable importance to the Union’s mining industries. In addition there would appear to be possibilities for the utilisation in the near future, of the raw ground bark and the wattle extract for the manufacture of a number of by-products, including certain types of plastics.
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Date Issued: 1947

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The missionary work of the first Anglican Bishop of Natal, the Rt. Reverend John William Colenso, between the years 1852-1873

- Burnett, B B

Authors: Burnett, B B
Date: 1947
Subjects: Colenso, John William, 1814-1883
Language: English
Type: Thesis , Masters , MA
Identifier: vital:2621 , http://hdl.handle.net/10962/d1014679
Description: At the outset it had been my intention to make only the slightest of references to the Church Controversy in which Bishop Colenso was involved and to have touched only lightly on his theological position. Apart from anything else I hesitated to enter the arena in which so many had already collided violently and where my own prejudices might be enlisted on one side or the other. It became evident however that Colenso the Controversialist, the Theologian could not be dissociated from Colenso the missionary, without giving an inadequate, and even misleading history of his missionary activities. The Controversy had a serious and deleterious effect on his missionary work, and no estimate of the value of a missionary's labours would be valid without some consideration of his teaching, more especially when his orthodoxy is suspect. I have therefore dealt as briefly as I could with these questions in Chapter V because of their relevance, and because to produce a work on an ecclesiastic without some reference to his tenets would be like writing a biography of Louis Botha without any allusion to his political 'faith', or of Wellington, without any mention of Waterloo. it would represent a distortion of history to write about a Missionary Bishop as though he were an amateur politician, or of a missionary as though he were interested only in finance and administration.
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Date Issued: 1947

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A critical examination of the evidence regarding the size of manufacturing units in the footwear industry of South Africa, Great Britain, Canada and the U.S.A. with an assessment of the economic implications and consequences of these conditions in relation to the South African customs tariff

- Brits, R N

Authors: Brits, R N
Date: 1946
Subjects: Footwear industry -- South Africa , Footwear industry , Tariff -- South Africa
Language: English
Type: Thesis , Masters , MCom
Identifier: vital:1080 , http://hdl.handle.net/10962/d1009755 , Footwear industry -- South Africa , Footwear industry , Tariff -- South Africa
Description: Before the formation of Union in 1910 there were a few scattered boot and shoe factories in South Africa. Unfortunately, owing to lack of statistics, it is impossible to tell which of these establishments were actually manufacturing boots and shoes, and which were only engaged in repair work.
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Date Issued: 1946

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Base exchange in soils : a study of the reproducibility of base exchange values for some South African soils, as indicated by leaching with normal ammonium acetate solution

- Pienaar, D J

Authors: Pienaar, D J
Date: 1946
Subjects: Soil chemistry , Soils
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:4489 , http://hdl.handle.net/10962/d1013038
Description: A very reliable method for the total analysis of the ammonium acetate leachate has been outlined. This is both simple and straight forward and is more rapid than any which have been seen in the literature. It is particularly applicable where a worker must perform a large number of routine analyses in the minimum of time. Shirley (29) and other workers have shown that 1000 ml. of leaching solution is generally necessary to extract all the exchangeable gases. The present investigation has shown that the time of leaching makes no appreciable difference to the amounts of bases replaced, as long as this exceeds four hours. Two alternative methods have been introduced for the rapid determination of the total exchangeable bases in a soil and there are considered to be more reliable than that of Bray and White. It is suggested that the two new methods might yield a still greater degree of accuracy if larger aliquots were to be used for each determination. It is further pointed out that the values obtained by the chloride methods are more likely to represent correct values than the sum totals of the bases as determined individually, since these are arrived at by summing the results of four different estimations, each of which is liable to experimental error, whereas in the chloride methods there is only one perfectly straightforward determination. The values for the total exchangeable bases in the soils examined were found to vary over the range 2.50 to 14.28 m.e. per 100 g. soil, with a variance of up to ± 0.2sm.e. per 100 g., corresponding to a percentage error of up to ± 4.7%. These figures are based on the analysis of 12 separate leachings of each soil with normal ammonium acetate solution of pH 7.00. This rather wide variance can be attributed to the fact that the exchangeable bases in some soils are more easily replaceable than in other soils. It is regretted that the shortage of time and the non-availability of a complete range of samples of all typical South African soils has prevented the attainment of an original objective, namely, a statistical evaluation of the base exchange figures for all South African soil types. It would also have been of great interest to have been able to establish exactly the composition of the double salt of calcium and magnesium, whose existence has been postulated to explain the effect of the Ca/Mg ratio on the results yielded by the first chloride method. Summary, p. 67-68.
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Date Issued: 1946

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The morphology and biology of Anomala vetula Wied : an arthropod pest of turf in South Africa

- Bradford, B

Authors: Bradford, B
Date: 1946
Subjects: Anomala
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:5903 , http://hdl.handle.net/10962/d1013545
Description: From Introduction: For the past eight years, the Zoology Department of Rhodes University College, in co-operation with African Explosives & Chemical Industries Ltd., has been studying certain entomological problems relating to turf on the golf course along the coastal belt of the Eastern Cape Province. The position is briefly as follows:- On the golf courses at Mossel Bay, Humewood (Port Elizabeth), Port Alfred and East London, vast damage has been done to the greens and fairways by "white grubs", the larval stages of Scarabaeidae. It would appear that these beetles had been present in the environs of the courses for many years, but it was only when large areas of the natural veld were converted into fairways, with a more or less uniform cover of grass, with Cynodon dactylon Pers. predominating, that conditions were inadvertently created which favoured the development of the beetles. It was not long after the establishment of these golf courses, that the beetles assumed the proportions of a pest, and the larvae began destroying the root system of the grasses covering the greens and fairways.
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Date Issued: 1946

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A study of the errors involved in the sampling of soils

- Steyn, Willem Johannes Abraham

Authors: Steyn, Willem Johannes Abraham
Date: 1945
Subjects: Soils -- Analysis , Soil chemistry
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:4505 , http://hdl.handle.net/10962/d1013290
Description: The importnnce of representative soil sampling is now beginning to receive more general recognition. The analysis of the sample, and any chemical or physical treatment it may undergo in the laboratory, is of little practical value if it is not known with reasonable certainty that this sample represents fairly the area from which it as taken. It has been said over and over again, that the existence of the world's whole civilization is dependent upon a mere strip of soil, only 9 inches in depth. The study of the soil is therefore of special importance if only for the practical end of replacing any nutrient deficiencies which may be found. Intro., p. 1.
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Date Issued: 1945

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Die Afrikaanse drama (1920-'39) as spieël van die Suid-Afrikaanse volkslewe met inleiding oor die Afrikaanse drama as kunsgenre

- Van der Spuy, M T

Authors: Van der Spuy, M T
Date: 1942
Language: Afrikaans
Type: Thesis , Masters , MA
Identifier: vital:21117 , http://hdl.handle.net/10962/6464
Description: Inleiding:'n Drama moet bo alles 'n direkte voorstelling gee van 'n natuurlike handeling, wat 'n aantal deur die kunstenaar geskape karakters deurmaak. Die wese van die drama is dus handeling. Allermins is drama 'n met gesprekke aangeklede verhaal, maar ook is drama geen blote karakteruitbeelding nie. Die handeling moet die uiterlike, maar veral die innerlike uitbeeld: Die psige van die mens, sy gevoelens, neiginge, hartstogte, ideë, in hulle skakeringe en wisselwerkinge - hier lê die gebied van die dramaturg. Maar wat 'n dramatiese handeling uitbeeld, moet meer wees as die menslike geaardheid, dit moet die lewe self wees.
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Date Issued: 1942

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The determination of selenium and tellurium in blister copper and copper concentrates

- Gray, Douglas James Skirving

Authors: Gray, Douglas James Skirving
Date: 1940
Subjects: Selenium , Tellurium , Copper
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:4478 , http://hdl.handle.net/10962/d1012090
Description: Selenium and tellurium do not occur to any great extent in Nature and they are seldom studied in any detail. However, a general understanding of their properties, both physical and chemical, is essential in an investigation of their analytical determination. A general account may be found in many of the text-books on inorganic chemistry, but the following resumè has been included in this dissertation for the sake of completeness.
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Date Issued: 1940

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The governorship of Sir Galbraith Lowry Cole

- Scheepers, Unus

Authors: Scheepers, Unus
Date: 1940
Subjects: Cole, Galbraith Lowry, Sir, 1772-1842 , Colonial administrators -- South Africa -- Cape of Good Hope , Cape of Good Hope (South Africa) History -- 1814-1835 , Cape of Good Hope (South Africa) -- Race relations , Slaves -- Emancipation -- South Africa -- Cape of Good Hope , Xhosa (African people) -- History -- 19th century , Xhosa (African people) -- Colonization -- South Africa -- Cape of Good Hope , Khoikhoi (African people) -- History -- 19th century
Language: English
Type: Thesis , Masters , MA
Identifier: vital:2600 , http://hdl.handle.net/10962/d1007899 , Cole, Galbraith Lowry, Sir, 1772-1842 , Colonial administrators -- South Africa -- Cape of Good Hope , Cape of Good Hope (South Africa) History -- 1814-1835 , Cape of Good Hope (South Africa) -- Race relations , Slaves -- Emancipation -- South Africa -- Cape of Good Hope , Xhosa (African people) -- History -- 19th century , Xhosa (African people) -- Colonization -- South Africa -- Cape of Good Hope , Khoikhoi (African people) -- History -- 19th century
Description: From Conclusion: There were no great upheavals during Cole's governership, but his rule has been a very interesting study. The old order of things was coming to a close. The way was prepared under Cole for freeing of the slaves; and the old despotic rule became a thing of the past. The British Settlers agitated for and obtained a free press; thus the foundation was laid for democratic institutions. He was the first governor to lay emphasis on the necessity of municipal councils not only as a way of decreasing expenditure, but also as a school for representative government. The Boers were becoming race conscious and the present orientation of the political parties had their origin in this period, though subsequent events have made the political struggle embittered. Above all the stage was being set for the Great Trek and the opening up of the whole of the present Union of South Africa and Rhodesia ... Last but not least the native question was entering upon its modern phase. Chiefs were losing their power, they admitted that they could not control their subjects, and natives were entering the service of Europeans; not only to steal with greater impunity but also to be able to enjoy the security offered by a well organised and disciplined society.
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Date Issued: 1940

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The development of native policy in the Transkei and in Glen Gray between 1870 and 1900

- Griffiths, M S

Authors: Griffiths, M S
Date: 1939
Subjects: Transkei (South Africa) -- History , Black people -- South Africa -- Legal status, Laws, etc. -- South Africa -- History
Language: English
Type: Thesis , Masters , MA
Identifier: vital:2607 , http://hdl.handle.net/10962/d1012098 , Transkei (South Africa) -- History , Black people -- South Africa -- Legal status, Laws, etc. -- South Africa -- History
Description: The Transkeian Territories extend over a stretch of 17000 square miles between the north eastern border of the Cape Colony and the southern border of Natal. In 1870 this was an exclusively Native area ; inhabited by some half million natives tribally organised under independent chiefs and grouped into racial entities according to origln; customs, and language dialects.
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Date Issued: 1939

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A polarographic study : the estimation of sodium and potassium in the presence of each other

- Carter, Austin John

Authors: Carter, Austin John
Date: 1938
Subjects: Polarographs , Polarography , Potassium , Sodium
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:4455 , http://hdl.handle.net/10962/d1010434
Description: The polarographic method has been described, and an attempt made to describe the difficulty of the simultaneous deposition of sodium and potassium. Various methods have been examined, of which precipitation of potassium with magnesium dipicrylaminate seems the most promising. The quantitative results were unsatisfactory, and possible sources of error are discussed. The method, while very convenient, rapid and labour-saving, is not sufficiently standardised to be trustworthy.
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Date Issued: 1938

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