Watasala warila nanzifile
- A.T. Mwamosi (Composer), Hugh Tracey
- Authors: A.T. Mwamosi (Composer) , Hugh Tracey
- Date: 1957
- Subjects: Folk music--Africa , Music--Mozambique , Guitar , Instrumental music , Africa Mozambique Gaza f-mz
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/132791 , vital:36887 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR008-11
- Description: Two topical songs with 2 guitars
- Full Text: false
- Date Issued: 1957
- Authors: A.T. Mwamosi (Composer) , Hugh Tracey
- Date: 1957
- Subjects: Folk music--Africa , Music--Mozambique , Guitar , Instrumental music , Africa Mozambique Gaza f-mz
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/132791 , vital:36887 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR008-11
- Description: Two topical songs with 2 guitars
- Full Text: false
- Date Issued: 1957
Ilanga langishiya
- A.T. Mwamosi (Composer), Hugh Tracey
- Authors: A.T. Mwamosi (Composer) , Hugh Tracey
- Date: 1957
- Subjects: Folk music--Africa , Music--Mozambique , Guitar , Instrumental music , Africa Mozambique Gaza f-mz
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/132786 , vital:36886 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR008-10
- Description: Two topical songs with 2 guitars
- Full Text: false
- Date Issued: 1957
- Authors: A.T. Mwamosi (Composer) , Hugh Tracey
- Date: 1957
- Subjects: Folk music--Africa , Music--Mozambique , Guitar , Instrumental music , Africa Mozambique Gaza f-mz
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/132786 , vital:36886 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR008-10
- Description: Two topical songs with 2 guitars
- Full Text: false
- Date Issued: 1957
Ilanga langishiya
- Alberto Tentowani Mwamosi, Gabriel Maopana Bila, composer not specified, Tracey, Hugh
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , composer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356514 , vital:64631 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-KIS9
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , composer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356514 , vital:64631 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-KIS9
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
Mashenganyana
- Alberto Tentowani Mwamosi, Gabriel Maopana Bila, Tracey, Hugh
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356562 , vital:64640 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-L1A2
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356562 , vital:64640 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-L1A2
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
Achifa dukwana chamina
- Alberto Tentowani Mwamosi, Gabriel Maopana Bila, Tracey, Hugh
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356529 , vital:64634 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-L1A1
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
- Authors: Alberto Tentowani Mwamosi , Gabriel Maopana Bila , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356529 , vital:64634 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-L1A1
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
Watasala warila nanzifile
- Alberto Tentowani Mwamosi, performer not specified, Tracey, Hugh
- Authors: Alberto Tentowani Mwamosi , performer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356505 , vital:64630 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-K1S10
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
- Authors: Alberto Tentowani Mwamosi , performer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa city not specified f-sa
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/356505 , vital:64630 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , TP4347-K1S10
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
Photofluorescence decay times of organic phosphors
- Authors: Hamilton, T D S
- Date: 1957
- Subjects: Fluorescence , Phosphorescence
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5525 , http://hdl.handle.net/10962/d1012136 , Fluorescence , Phosphorescence
- Description: The absorption and emission of energy is a fundamental property of any atomic system.When the emission occurs in the visible or near visible region the phenomenon is usually referred to as luminescence or fluorescence. This must be distinguished from thermal radiation as it does not follow Kirchoff's law.
- Full Text:
- Date Issued: 1957
- Authors: Hamilton, T D S
- Date: 1957
- Subjects: Fluorescence , Phosphorescence
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5525 , http://hdl.handle.net/10962/d1012136 , Fluorescence , Phosphorescence
- Description: The absorption and emission of energy is a fundamental property of any atomic system.When the emission occurs in the visible or near visible region the phenomenon is usually referred to as luminescence or fluorescence. This must be distinguished from thermal radiation as it does not follow Kirchoff's law.
- Full Text:
- Date Issued: 1957
Studies on the biology of ants associated with citrus trees
- Authors: Myers, N J
- Date: 1957
- Subjects: Citrus -- Diseases and pests -- Biological control -- South Africa , Ants -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5869 , http://hdl.handle.net/10962/d1012923
- Description: Several ant species may be associated with the same honeydew producing insect in citrus orchards. Recently antagonism and competition between two such ants were reported from Letaba. This report stimulated the present study, the purpose of which is to ascertain which ant species are most numerous in citrus orchards ln the Eastern Cape Province; the reasons for these ants being able to occupy orchards; and, finally, their relationships. A survey of the Sundays River Valley and the Fish River Valley revealed that three species - Anoplolepis custodiens Smith, Anoplolepis steingroeveri Forel, and Pheidole megacephala Fabricius - were commonly found in citrus orchards in association with Soft Brown Scale insects. The territorial relationships of these ants were determined by plotting their distribution at intervals for over a year. It was found that this distribution could be correlated with seasonal climatic conditions, the effects of farming practices, brood rearing requirements and behavioural differences between the three species. The ant, A.steingroeveri, had not been previously studied, and since foraging is an integral part of territorial behaviour, some aspects of its biology, and more especially its foraging activity, were investigated to compare it with the known biology of the other two species. Observations on the foraging activity of A. steingroeveri were made at monthly lntervals for almost a year, and correlated with climatic conditions prevailing at the time. Some seasonal and dally variations in foraging behaviour could not be readily explained in terms of the effects of temperature and humidity on the ants. Other factors, includ1ng trophallactic stimulation and overcast skies, were found to influence ant activity. Owing to the apparent lack of information in the literature and possibility of periodic honeydew production by Soft Brown Scale insects controlling ant activity was investigated in the laboratory. The results of this study showed that it was not likely that honeydew excretion restricted the activity of the ants. Several investigators have also found that many interrelated climatic factors correlated with ant foraging behaviour, but have expressed dissatisfaction at not being able to reach the crux of the matter. To clarify the issue a constant temperature chamber was constructed in which a colony of Crematogaster ants was housed and the ants were subjected to a series of temperatures at different humidities, all other factors were eliminated or kept constant. The effects of these two factors on the thermokinetics and foraging activity of the ants were registered. This thesis contains several sections and at the end of each the results are discussed in the light of the available literature and comparisons are drawn between the species under investigation. The main results are given in the summary. After the summary two appendices are included. One is an attempt to compare the effect on ant size of the honeydew diet of orchard colonies with the proteinaceoue diet of veld ants. The other appendix is an experiment to control citrus ants with an insecticide.
- Full Text:
- Date Issued: 1957
- Authors: Myers, N J
- Date: 1957
- Subjects: Citrus -- Diseases and pests -- Biological control -- South Africa , Ants -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5869 , http://hdl.handle.net/10962/d1012923
- Description: Several ant species may be associated with the same honeydew producing insect in citrus orchards. Recently antagonism and competition between two such ants were reported from Letaba. This report stimulated the present study, the purpose of which is to ascertain which ant species are most numerous in citrus orchards ln the Eastern Cape Province; the reasons for these ants being able to occupy orchards; and, finally, their relationships. A survey of the Sundays River Valley and the Fish River Valley revealed that three species - Anoplolepis custodiens Smith, Anoplolepis steingroeveri Forel, and Pheidole megacephala Fabricius - were commonly found in citrus orchards in association with Soft Brown Scale insects. The territorial relationships of these ants were determined by plotting their distribution at intervals for over a year. It was found that this distribution could be correlated with seasonal climatic conditions, the effects of farming practices, brood rearing requirements and behavioural differences between the three species. The ant, A.steingroeveri, had not been previously studied, and since foraging is an integral part of territorial behaviour, some aspects of its biology, and more especially its foraging activity, were investigated to compare it with the known biology of the other two species. Observations on the foraging activity of A. steingroeveri were made at monthly lntervals for almost a year, and correlated with climatic conditions prevailing at the time. Some seasonal and dally variations in foraging behaviour could not be readily explained in terms of the effects of temperature and humidity on the ants. Other factors, includ1ng trophallactic stimulation and overcast skies, were found to influence ant activity. Owing to the apparent lack of information in the literature and possibility of periodic honeydew production by Soft Brown Scale insects controlling ant activity was investigated in the laboratory. The results of this study showed that it was not likely that honeydew excretion restricted the activity of the ants. Several investigators have also found that many interrelated climatic factors correlated with ant foraging behaviour, but have expressed dissatisfaction at not being able to reach the crux of the matter. To clarify the issue a constant temperature chamber was constructed in which a colony of Crematogaster ants was housed and the ants were subjected to a series of temperatures at different humidities, all other factors were eliminated or kept constant. The effects of these two factors on the thermokinetics and foraging activity of the ants were registered. This thesis contains several sections and at the end of each the results are discussed in the light of the available literature and comparisons are drawn between the species under investigation. The main results are given in the summary. After the summary two appendices are included. One is an attempt to compare the effect on ant size of the honeydew diet of orchard colonies with the proteinaceoue diet of veld ants. The other appendix is an experiment to control citrus ants with an insecticide.
- Full Text:
- Date Issued: 1957
The British organ and its music during the nineteenth century
- Authors: Wise, James Patrick Gerald
- Date: 1957
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2694 , http://hdl.handle.net/10962/d1013429
- Description: It is a curious fact that, although the literature of the organ is a reasonably large one, no attempt has been made to study the history of the instrument in Britain in any detail. Hopkins and Rimbault covered a certain amount of ground up to 1800, but even they could not deal very extensively with the subject in a volume that was tracing the history of the organ not only in Britain, but throughout Europe, and not only its history but its construction also. For similar reasons Dr. Sumner? (name unclear), in his recent book, could paint little more than an outline picture. However, the British organ's development prior to 1800 was one that does not admit of very discursive treatment. Progress was lamentably slow in comparison with that of Continental organs; and consequently the nineteenth century dawned with British organ-building literally hundreds of years behind that of France, Germany, Belgium and Holland. Yet, a century later, the position was redeemed, and even before the present era opened, the products of British organ-builders were not merely equal to, but, in general superior to those of the Continent in tonal design, mechanism, in artistic finish, and in ordinary maintenance and preservation. The nineteenth century, then, must clearly be regarded as a remarkable, indeed glorious, period in British organ-building, in fact one is tempted to enquire, whether there exists, in the entire artistic and scientific history of any country a similar example of accelerated development; in which one country has made up three hundred years' leeway in one third of that time. This thesis therefore, sets out to examine and describe the events of the century, and the men who were responsible for those events, to trace the growth of the organ in its various departments, and as the instrument itself is only a means to an end, to say something about the way in which it was used, the music that was played on it, and the men who played and composed this music. The thesis is divided into two volumes, the first deals entirely with the history of the instrument and its builders during the nineteenth century, with an introduction briefly recounting the story from the Restoration up to the year 1800; and the second volume is concerned with the music and the musicians as well as the several detailed indexes which are so necessary if a work of this kind is to be of any value at all. A full bibliography is given in Volume Two, but supreme acknowledgement must be paid here to the quarterly periodical "The Organ" - still thriving after an active career that began in July 1921. Its scholarly articles range over the whole field of international organ-building and organ-history, and without its help this thesis would have been far less comprehensive in its scope and far lesss authorative in its source-material.
- Full Text:
- Date Issued: 1957
- Authors: Wise, James Patrick Gerald
- Date: 1957
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2694 , http://hdl.handle.net/10962/d1013429
- Description: It is a curious fact that, although the literature of the organ is a reasonably large one, no attempt has been made to study the history of the instrument in Britain in any detail. Hopkins and Rimbault covered a certain amount of ground up to 1800, but even they could not deal very extensively with the subject in a volume that was tracing the history of the organ not only in Britain, but throughout Europe, and not only its history but its construction also. For similar reasons Dr. Sumner? (name unclear), in his recent book, could paint little more than an outline picture. However, the British organ's development prior to 1800 was one that does not admit of very discursive treatment. Progress was lamentably slow in comparison with that of Continental organs; and consequently the nineteenth century dawned with British organ-building literally hundreds of years behind that of France, Germany, Belgium and Holland. Yet, a century later, the position was redeemed, and even before the present era opened, the products of British organ-builders were not merely equal to, but, in general superior to those of the Continent in tonal design, mechanism, in artistic finish, and in ordinary maintenance and preservation. The nineteenth century, then, must clearly be regarded as a remarkable, indeed glorious, period in British organ-building, in fact one is tempted to enquire, whether there exists, in the entire artistic and scientific history of any country a similar example of accelerated development; in which one country has made up three hundred years' leeway in one third of that time. This thesis therefore, sets out to examine and describe the events of the century, and the men who were responsible for those events, to trace the growth of the organ in its various departments, and as the instrument itself is only a means to an end, to say something about the way in which it was used, the music that was played on it, and the men who played and composed this music. The thesis is divided into two volumes, the first deals entirely with the history of the instrument and its builders during the nineteenth century, with an introduction briefly recounting the story from the Restoration up to the year 1800; and the second volume is concerned with the music and the musicians as well as the several detailed indexes which are so necessary if a work of this kind is to be of any value at all. A full bibliography is given in Volume Two, but supreme acknowledgement must be paid here to the quarterly periodical "The Organ" - still thriving after an active career that began in July 1921. Its scholarly articles range over the whole field of international organ-building and organ-history, and without its help this thesis would have been far less comprehensive in its scope and far lesss authorative in its source-material.
- Full Text:
- Date Issued: 1957
The positive contribution of the religious life to the life of the church
- Authors: Clucas, Robert Stephen
- Date: 1957
- Subjects: Religion , Christian life , Anglicans
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1291 , http://hdl.handle.net/10962/d1014701
- Description: The positive contribution of the religious life to the life of the church as a whole. Chapter one: presuppositions of an Anglican, with particular views of ministry, Bible, church and sacraments. Presupposition as regards friendship acknowledgement of influence of C.S. Lewis. Prejudices from outside. The old prejudices, their causes and historical foundation. New prejudices in the present-day world. Chapter two. Misunderstandings from within. The religious life as a higher way of perfection. False view of detachment. Celibacy of the priesthood. Correctives to those misunderstandings. Chapter three. The temporal and the temporary. Contributions which religious life makes continually in a fallen world. The temporary contributions made at different times. Chapter four. The eternal and the inward. Eternal aspects of the threefold vow and of the worship of community life. Contribution of religious throughout the ages to ascetic and mystical theology, which builds on inner life of the Christian. Chapter five. Conclusions and speculations. Re-examination of definition of the religious life. Side developments of the religious life. Three protestant communities. The religious life and present-day problems.
- Full Text:
- Date Issued: 1957
- Authors: Clucas, Robert Stephen
- Date: 1957
- Subjects: Religion , Christian life , Anglicans
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1291 , http://hdl.handle.net/10962/d1014701
- Description: The positive contribution of the religious life to the life of the church as a whole. Chapter one: presuppositions of an Anglican, with particular views of ministry, Bible, church and sacraments. Presupposition as regards friendship acknowledgement of influence of C.S. Lewis. Prejudices from outside. The old prejudices, their causes and historical foundation. New prejudices in the present-day world. Chapter two. Misunderstandings from within. The religious life as a higher way of perfection. False view of detachment. Celibacy of the priesthood. Correctives to those misunderstandings. Chapter three. The temporal and the temporary. Contributions which religious life makes continually in a fallen world. The temporary contributions made at different times. Chapter four. The eternal and the inward. Eternal aspects of the threefold vow and of the worship of community life. Contribution of religious throughout the ages to ascetic and mystical theology, which builds on inner life of the Christian. Chapter five. Conclusions and speculations. Re-examination of definition of the religious life. Side developments of the religious life. Three protestant communities. The religious life and present-day problems.
- Full Text:
- Date Issued: 1957
The solubility of barium sulphate in water at 25°
- Authors: Rosseinsky, D R
- Date: 1957
- Subjects: Chemistry, Physical and theoretical , Solubility , Barium sulfate
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4491 , http://hdl.handle.net/10962/d1013097
- Description: Barium sulphate is a widely used analytical precipitate and for this reason its properties have been extensively studied. The variety of results encountered with barium sulphate samples prepared by different methods is an indication of the complex nature of this interesting substance. Intro., p. 8.
- Full Text:
- Date Issued: 1957
- Authors: Rosseinsky, D R
- Date: 1957
- Subjects: Chemistry, Physical and theoretical , Solubility , Barium sulfate
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4491 , http://hdl.handle.net/10962/d1013097
- Description: Barium sulphate is a widely used analytical precipitate and for this reason its properties have been extensively studied. The variety of results encountered with barium sulphate samples prepared by different methods is an indication of the complex nature of this interesting substance. Intro., p. 8.
- Full Text:
- Date Issued: 1957
Verkenninge in die woordeskat van die poësie met spesiale verwysing na N. P. van Wyk Louw
- Authors: De Villiers, Aart
- Date: 1957
- Subjects: Louw, N. P. van Wyk (Nicolaas Petrus van Wyk), 1906-1970 -- Criticism and interpretation , Afrikaans poetry -- History and criticism
- Language: Afrikaans
- Type: Thesis , Masters , MA
- Identifier: vital:3644 , http://hdl.handle.net/10962/d1014742
- Description: [From Introduction]. Soos die titel aandui, wil hierdie skripsie bloot verkenninge wees. Dit sal vir die leser duidelik wees dat dieselfde metode van benadering wat ek hier op sekere aspekte van die woordeskat van van Wyk Louw se poësie toegepas het, ook op ander woordsoorte toegepas sou kan word, en ook op die werk van ander digters. As 'n mens die gegewens wat jy so verkry, histories sou beskou, sou jy 'n baie interessante kykie kry op die ontwikkeling van die woordeskat in die Afrikaanse poësie. ln die beste van een skripsie is so iets egter, soos duidelik sal blyk, nie moontlik nie. Later, voel ek, sou miskien met vrug op dié grondslag voortgebou kan word.
- Full Text:
- Date Issued: 1957
- Authors: De Villiers, Aart
- Date: 1957
- Subjects: Louw, N. P. van Wyk (Nicolaas Petrus van Wyk), 1906-1970 -- Criticism and interpretation , Afrikaans poetry -- History and criticism
- Language: Afrikaans
- Type: Thesis , Masters , MA
- Identifier: vital:3644 , http://hdl.handle.net/10962/d1014742
- Description: [From Introduction]. Soos die titel aandui, wil hierdie skripsie bloot verkenninge wees. Dit sal vir die leser duidelik wees dat dieselfde metode van benadering wat ek hier op sekere aspekte van die woordeskat van van Wyk Louw se poësie toegepas het, ook op ander woordsoorte toegepas sou kan word, en ook op die werk van ander digters. As 'n mens die gegewens wat jy so verkry, histories sou beskou, sou jy 'n baie interessante kykie kry op die ontwikkeling van die woordeskat in die Afrikaanse poësie. ln die beste van een skripsie is so iets egter, soos duidelik sal blyk, nie moontlik nie. Later, voel ek, sou miskien met vrug op dié grondslag voortgebou kan word.
- Full Text:
- Date Issued: 1957
Some aspects of the animal ecology of Rhenosterbos: Elytropappus rhinocerotis (L.f.) Less
- Authors: Shiff, Clive Julian
- Date: 1957
- Subjects: Animal ecology -- South Africa , Rhenosterbos
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5880 , http://hdl.handle.net/10962/d1013200
- Description: Rhenosterbos, Elytropappus rhinocerotis (L.f.) Less belongs to a purely South African section ot the Compositae. It is restricted to an area of low rainfall which is evenly distributed over the year. The plant is a specialised xerophyte with minute leaves and white pubescent twiglets. Older stems become woody and dry and bear no leaves. The shrubs have a life span of about eight years; the plants are most succulent and luxurious during the third and fourth year, after which they tend to become woody and scraggly. For this investigation insect material was obtained by sweep-net collection and field observation. In the Grahamatown district 78 collections were made during the period March - November 1953, with data thus obtained being embodied in this work. In addition to this, collections were made in the Cradock-Hofmeyer, Uitenhage, Riversdale, Bot River, Swellendam and Stellenbosch districts. Twenty species of insects have been shown definitely to feed on the plant and there are another 13 which probably feed on it. Of the 20 species attached to the plant, 12 are sucking forms belonging to the Orders Homoptera and Hemipters. They include six Coccids, two Jassids a Cercopid, two Mirids and a Pentstomid. The Coleoptera are represented by one or perhaps two species which feed on the plant. The Lepidoptera are represented by two important species of moth, a Geometrid and a Pyralid. Four species of gall forming Diptera are associated with the plant. There are two species of Trypetidae which are responsible for piriform swellings of growth points and are distributed evenly throughout the bush. There are also two Cecidomyidae one of which develops in the growth points of the shoots and is responsible tor a minute tubular gall. The other develops in a fusiform stem gall. This latter gall has been shown to be more common on smaller bushes than on larger ones, implying that the adult female may show certain selective powers during oviposition. The size of the insect population is held in check by spiders mantids and other general predators. There are several Coccinellids which prey on the scale insects. Rhenosterbos supports a small, well regulated community of insects. The balance between plant and animal is very dellcate because of the high degree of specialisation of the plant. On occasions this balance has been known to break down, and the insects present in abundance have swamped and killed large patches of the plant.
- Full Text:
- Date Issued: 1957
- Authors: Shiff, Clive Julian
- Date: 1957
- Subjects: Animal ecology -- South Africa , Rhenosterbos
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5880 , http://hdl.handle.net/10962/d1013200
- Description: Rhenosterbos, Elytropappus rhinocerotis (L.f.) Less belongs to a purely South African section ot the Compositae. It is restricted to an area of low rainfall which is evenly distributed over the year. The plant is a specialised xerophyte with minute leaves and white pubescent twiglets. Older stems become woody and dry and bear no leaves. The shrubs have a life span of about eight years; the plants are most succulent and luxurious during the third and fourth year, after which they tend to become woody and scraggly. For this investigation insect material was obtained by sweep-net collection and field observation. In the Grahamatown district 78 collections were made during the period March - November 1953, with data thus obtained being embodied in this work. In addition to this, collections were made in the Cradock-Hofmeyer, Uitenhage, Riversdale, Bot River, Swellendam and Stellenbosch districts. Twenty species of insects have been shown definitely to feed on the plant and there are another 13 which probably feed on it. Of the 20 species attached to the plant, 12 are sucking forms belonging to the Orders Homoptera and Hemipters. They include six Coccids, two Jassids a Cercopid, two Mirids and a Pentstomid. The Coleoptera are represented by one or perhaps two species which feed on the plant. The Lepidoptera are represented by two important species of moth, a Geometrid and a Pyralid. Four species of gall forming Diptera are associated with the plant. There are two species of Trypetidae which are responsible for piriform swellings of growth points and are distributed evenly throughout the bush. There are also two Cecidomyidae one of which develops in the growth points of the shoots and is responsible tor a minute tubular gall. The other develops in a fusiform stem gall. This latter gall has been shown to be more common on smaller bushes than on larger ones, implying that the adult female may show certain selective powers during oviposition. The size of the insect population is held in check by spiders mantids and other general predators. There are several Coccinellids which prey on the scale insects. Rhenosterbos supports a small, well regulated community of insects. The balance between plant and animal is very dellcate because of the high degree of specialisation of the plant. On occasions this balance has been known to break down, and the insects present in abundance have swamped and killed large patches of the plant.
- Full Text:
- Date Issued: 1957
Liquid junction potentials at mixed electrolyte salt bridges
- Authors: Finkelstein, Noel Phillip
- Date: 1957
- Subjects: Hydrogen-ion concentration -- Measurement , Hydrogen-ion concentration , Electrochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4473 , http://hdl.handle.net/10962/d1011835 , Hydrogen-ion concentration -- Measurement , Hydrogen-ion concentration , Electrochemistry
- Description: The potentiometric method is one of the most exact techniques of electrochemistry. Its use is widespread in both routine measurements, such as pH determination, and in applications which demand the highest accuracy. Perhaps its severest limitation is the error due to liquid junction potentials. Although this has been the subject of much study, and although various means of combating it have been proposed, it has defied all attempts at a satisfactory solution. Indeed, so serious is the position that it has become the accepted practice in the more accurate fields to abandon altogether the use of potentiometric techniques in favour of others, usually less convenient and otherwise less accurate, when the presence of liquid junctions cannot be avoided. Intro. p. 1.
- Full Text:
- Date Issued: 1957
- Authors: Finkelstein, Noel Phillip
- Date: 1957
- Subjects: Hydrogen-ion concentration -- Measurement , Hydrogen-ion concentration , Electrochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4473 , http://hdl.handle.net/10962/d1011835 , Hydrogen-ion concentration -- Measurement , Hydrogen-ion concentration , Electrochemistry
- Description: The potentiometric method is one of the most exact techniques of electrochemistry. Its use is widespread in both routine measurements, such as pH determination, and in applications which demand the highest accuracy. Perhaps its severest limitation is the error due to liquid junction potentials. Although this has been the subject of much study, and although various means of combating it have been proposed, it has defied all attempts at a satisfactory solution. Indeed, so serious is the position that it has become the accepted practice in the more accurate fields to abandon altogether the use of potentiometric techniques in favour of others, usually less convenient and otherwise less accurate, when the presence of liquid junctions cannot be avoided. Intro. p. 1.
- Full Text:
- Date Issued: 1957
Grahamstown : S.A.R. bus services operated from Grahamstown
- Authors: Watts, Hilstan Lett, 1929-
- Date: 1957
- Subjects: f-sa , 2 cm = 2000 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Bus travel -- South Africa -- Grahamstown Graphs , South Africa History 1909-1961 , South Africa History 1836-1909
- Language: English
- Type: maps , digital maps , cartographic
- Identifier: http://hdl.handle.net/10962/121341 , vital:35001 , Cory Library for Humanities Research, Rhodes University Library, Grahamstown, South Africa , T654_diagram 6
- Description: Diagram 6 in the map album accompanying the thesis by Hilstan Lett Watts, "Grahamstown : a socio-ecological study of a small South African town", Rhodes University thesis, 1957. Map signed 1955. This diagram is based on a S.A.R. diagram and is not to scale. Bus service frequencies are for scheduled regular services only and are taken from the 1953 S.A.R. timetable (no. 150, 15th June 1953).
- Full Text: false
- Date Issued: 1957
- Authors: Watts, Hilstan Lett, 1929-
- Date: 1957
- Subjects: f-sa , 2 cm = 2000 yards 30.5595° S, 22.9375° E , Grahamstown (South Africa) Maps , Bus travel -- South Africa -- Grahamstown Graphs , South Africa History 1909-1961 , South Africa History 1836-1909
- Language: English
- Type: maps , digital maps , cartographic
- Identifier: http://hdl.handle.net/10962/121341 , vital:35001 , Cory Library for Humanities Research, Rhodes University Library, Grahamstown, South Africa , T654_diagram 6
- Description: Diagram 6 in the map album accompanying the thesis by Hilstan Lett Watts, "Grahamstown : a socio-ecological study of a small South African town", Rhodes University thesis, 1957. Map signed 1955. This diagram is based on a S.A.R. diagram and is not to scale. Bus service frequencies are for scheduled regular services only and are taken from the 1953 S.A.R. timetable (no. 150, 15th June 1953).
- Full Text: false
- Date Issued: 1957
The struggle for national independence in its international setting : its economic and political background and its manifestation in the Fourth Committee of the United Nations General Assembly
- Authors: Lumsden, Geoffrey S
- Date: 1957
- Subjects: United Nations. General Assembly Self-determination, National Sovereignty Economics -- Political aspects Economic policy
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1091 , http://hdl.handle.net/10962/d1012790
- Description: The decade following the close of the Second World War has been dominated throughout by the clash of political power of the United States and the Soviet Union. Their wartime alliance has crumbled. New, antagonistic alliances have come into existence. The so-called 'EastWest' split, polar in its effect, has forced the admission that prospects of stable peace depend on how successfully bridges can be made to span the gulf. This over-riding and pervading reality has blinded us to the importance of another struggle, which is everywhere mounting in force and intensity and which history may well record as a dominant theme of the twentieth century -- the world-wide struggle for independence. In some cases it has produced revolution and violence: full-scale wars have been fought in its cause in Indonesia and Indo-China; military engagements have taken place in Kenya and Tunisia; Cypriots and British garrison forces have exchanged fire; Malayans have rioted; and 'incidents' too numerous to detail have been reported from a great variety of countries where political dependence exists. Intro., p. 1.
- Full Text:
- Date Issued: 1957
- Authors: Lumsden, Geoffrey S
- Date: 1957
- Subjects: United Nations. General Assembly Self-determination, National Sovereignty Economics -- Political aspects Economic policy
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1091 , http://hdl.handle.net/10962/d1012790
- Description: The decade following the close of the Second World War has been dominated throughout by the clash of political power of the United States and the Soviet Union. Their wartime alliance has crumbled. New, antagonistic alliances have come into existence. The so-called 'EastWest' split, polar in its effect, has forced the admission that prospects of stable peace depend on how successfully bridges can be made to span the gulf. This over-riding and pervading reality has blinded us to the importance of another struggle, which is everywhere mounting in force and intensity and which history may well record as a dominant theme of the twentieth century -- the world-wide struggle for independence. In some cases it has produced revolution and violence: full-scale wars have been fought in its cause in Indonesia and Indo-China; military engagements have taken place in Kenya and Tunisia; Cypriots and British garrison forces have exchanged fire; Malayans have rioted; and 'incidents' too numerous to detail have been reported from a great variety of countries where political dependence exists. Intro., p. 1.
- Full Text:
- Date Issued: 1957
The fishes of the Family Scorpaenidae; Part 1: The sub-family Scorpaeninae
- Smith, J.L.B. (James Leonard Brierley), 1897-1968
- Authors: Smith, J.L.B. (James Leonard Brierley), 1897-1968
- Date: 1957
- Subjects: Scorpionfishes , Scorpaenid fishes , Scorpaenidae
- Language: English
- Type: Text
- Identifier: vital:14967 , http://hdl.handle.net/10962/d1018541 , Ichthyological Bulletin; No. 4
- Description: Within the order Scleroparei, characterised by the well-developed suborbital stay, many systematists pack the typical family Scorpaenidae with an enormous assemblage of fishes, which while showing certain fundamental relationships are so divergent as to render such an arrangement out of keeping with the generally accepted range of a systematic family group. While this large group will eventually doubtless be divided into numerous families of a lesser range, there is adopted here the fairly well defined cleavage into two main groups, based chiefly on the nature of the dorsal fin. These with the closely related families Synanciidae and Caracanthidae form a natural sub-group in the order. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1957
- Authors: Smith, J.L.B. (James Leonard Brierley), 1897-1968
- Date: 1957
- Subjects: Scorpionfishes , Scorpaenid fishes , Scorpaenidae
- Language: English
- Type: Text
- Identifier: vital:14967 , http://hdl.handle.net/10962/d1018541 , Ichthyological Bulletin; No. 4
- Description: Within the order Scleroparei, characterised by the well-developed suborbital stay, many systematists pack the typical family Scorpaenidae with an enormous assemblage of fishes, which while showing certain fundamental relationships are so divergent as to render such an arrangement out of keeping with the generally accepted range of a systematic family group. While this large group will eventually doubtless be divided into numerous families of a lesser range, there is adopted here the fairly well defined cleavage into two main groups, based chiefly on the nature of the dorsal fin. These with the closely related families Synanciidae and Caracanthidae form a natural sub-group in the order. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1957
Rhodes University Graduation Ceremony 1957
- Authors: Rhodes University
- Date: 1957
- Language: English
- Type: text
- Identifier: vital:8091 , http://hdl.handle.net/10962/d1004401
- Description: Rhodes University. Graduation Ceremony in the University Great Hall on Friday , 29th March, 1957, at 8 p.m. [and] Graduation Ceremony held in April 1957: University College of Fort Hare. Graduation Ceremony at Fort Hare on Friday, April 26th ,1957 at 10:00 a.m.
- Full Text:
- Date Issued: 1957
- Authors: Rhodes University
- Date: 1957
- Language: English
- Type: text
- Identifier: vital:8091 , http://hdl.handle.net/10962/d1004401
- Description: Rhodes University. Graduation Ceremony in the University Great Hall on Friday , 29th March, 1957, at 8 p.m. [and] Graduation Ceremony held in April 1957: University College of Fort Hare. Graduation Ceremony at Fort Hare on Friday, April 26th ,1957 at 10:00 a.m.
- Full Text:
- Date Issued: 1957
A conductimetric investigation of phenomena in extremely dilute aqueous solutions
- Authors: Faure, Pierre Knobel
- Date: 1957
- Subjects: Adsorption , Solution (Chemistry)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4524 , http://hdl.handle.net/10962/d1014891
- Description: 1. The apparatus used in this investigation is fully described, and a new method is outlined for the calibration of bridge resistances "in situ". 2. A chart is given for the accurate correction of weights in air to weights in vacuum for a range of temperatures extending from 10° to 28°C, and for pressures from 690 to 730 mm. 3. An automatic recycling still has been designed for the continuous production of "ultra-pure" water. This still is capable of delivering daily, in routine operation, 16 l. of water of conductivity less than 100 nm/cm after aeration with "C0₂- and NH₃-free" air. 4. A very soluble layer appears to form on the surface of' glass when it is dried; this layer is readily removed on contact with water. 5. The removal of carbon dioxide and of ammonia from aqueous solution by aeration with an indifferent gas has been fully investigated, and it has been shown that these gases can be completely eliminated by such a process. Whereas the carbon dioxide is removed fairly rapidly, however, the ammonia, whether present alone or together with carbon dioxide, only goes out of solution rather slowly. 6. It has been shown that ammonia is adsorbed from aqueous solution on the glass walls of the cell. 7. There does not appear to be any ammonium bicarbonate in the residual impurity left in the "ultra-pure" water obtained from the still; the impurity can, in fact, be regarded as neutral salt with sufficient accuracy for most purposes. 8. The resistance change which accompanies any variation in the rate of bubbling of the stirring gas through the water has been investigated, but no solution has been found as to the cause of this change. 9. A comparison has been made of the efficiency of different gases for stirring purposes, and it seems that, for general work, nitrogen is by far the most suitable of the common gases. 10. The extrapolation to be used for converting resistances to their values at infinite frequency appears ...
- Full Text:
- Date Issued: 1957
- Authors: Faure, Pierre Knobel
- Date: 1957
- Subjects: Adsorption , Solution (Chemistry)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4524 , http://hdl.handle.net/10962/d1014891
- Description: 1. The apparatus used in this investigation is fully described, and a new method is outlined for the calibration of bridge resistances "in situ". 2. A chart is given for the accurate correction of weights in air to weights in vacuum for a range of temperatures extending from 10° to 28°C, and for pressures from 690 to 730 mm. 3. An automatic recycling still has been designed for the continuous production of "ultra-pure" water. This still is capable of delivering daily, in routine operation, 16 l. of water of conductivity less than 100 nm/cm after aeration with "C0₂- and NH₃-free" air. 4. A very soluble layer appears to form on the surface of' glass when it is dried; this layer is readily removed on contact with water. 5. The removal of carbon dioxide and of ammonia from aqueous solution by aeration with an indifferent gas has been fully investigated, and it has been shown that these gases can be completely eliminated by such a process. Whereas the carbon dioxide is removed fairly rapidly, however, the ammonia, whether present alone or together with carbon dioxide, only goes out of solution rather slowly. 6. It has been shown that ammonia is adsorbed from aqueous solution on the glass walls of the cell. 7. There does not appear to be any ammonium bicarbonate in the residual impurity left in the "ultra-pure" water obtained from the still; the impurity can, in fact, be regarded as neutral salt with sufficient accuracy for most purposes. 8. The resistance change which accompanies any variation in the rate of bubbling of the stirring gas through the water has been investigated, but no solution has been found as to the cause of this change. 9. A comparison has been made of the efficiency of different gases for stirring purposes, and it seems that, for general work, nitrogen is by far the most suitable of the common gases. 10. The extrapolation to be used for converting resistances to their values at infinite frequency appears ...
- Full Text:
- Date Issued: 1957
Gumbu ḽanga
- Freddie Maṱodzi, performer not specified, composer not specified, Tracey, Hugh
- Authors: Freddie Maṱodzi , performer not specified , composer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa Limpopo Province f-sa
- Language: Venda
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/407688 , vital:70403 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , JBFT19-KV14-KV5A3A
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957
- Authors: Freddie Maṱodzi , performer not specified , composer not specified , Tracey, Hugh
- Date: 1957
- Subjects: Folk Music , Field recordings , Africa, Sub-Saharan , Africa South Africa Limpopo Province f-sa
- Language: Venda
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/407688 , vital:70403 , International Library of African Music, Rhodes University, Makhanda, South Africa , Hugh Tracey Commercial Records, Rhodes University, Makhanda, South Africa , JBFT19-KV14-KV5A3A
- Description: Indigenous music
- Full Text: false
- Date Issued: 1957