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Taragina

Attempted synthesis of a [beta] or [gamma] resorcinyl alcohol

  • Authors: Ryding, William Wallace
  • Date: 1952
  • Subjects: Alcohol -- Synthesis , Resorcinol
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4517 , http://hdl.handle.net/10962/d1014134
  • Description: The ultimate objective of this research is the elucidation of the mechanism of the resorcinol-formaldehyde condensation. Whilst a vast literature has been built up about the phenol- formaldehyde condensation, that of resorcinol has received but scant attention, probably because the high reactivity of resorcinol rendered the following of the condensation extremely difficult. The earliest observation concerning the resorcinol-formaldehyde condensation was due to Baeyer who, in 1872, condensed resorcinol with various aldehydes. When the aldehyde was relatively inactive crystalline compounds were obtalned but with acetaldehyde or formaldehyde a resinous product resulted. In 1892 Caro condensed an excess ot resorcinol with formaldehyde in the presence of dilute hydrochloric acid; the product obtained recrystallised from alcohol as white microsoopic crystals, decomposed without melting at 250° and was stated to be bis (2- 4 dihydroxyphenyl) methane ... In decidlng upon the most suitable lines of attack it would seem that a survey of the literature relating to the phenol-formaldehyde concentration which might be expected to be closely related to that of resorcinol, would be of value. Summary of p. 1-5
  • Full Text:
  • Date Issued: 1952

Imihigo Part 1

Imihigo Part 2

Benura tiwoni memba

Tawikana mutima pano

Tweespruit

Bushi chihugo

Ene we, rhweshi we

Ene lusiki lwinja

Abashi boshi

Rhodes University Graduation Ceremony 1952

  • Authors: Rhodes University
  • Date: 1952
  • Language: English
  • Type: text
  • Identifier: vital:8086 , http://hdl.handle.net/10962/d1004396
  • Description: Rhodes University. Graduation Ceremony held in the Grahamstown City Hall. On Friday, 28th March, 1952, at 8 p.m. , Rhodes University. Graduation Ceremony held in April 1952: South African Native College, Fort Hare Graduation Ceremony, 25th April, 1952.
  • Full Text:
  • Date Issued: 1952

Talking drums of the Upper Congo

  • Authors: Rev. W. H. Ford and two drummers. Singili and Kobo (ulungula bo kiokio) , Hugh Tracey
  • Date: 1952
  • Subjects: Lokele (African people) , Folk music , Field recordings , Africa, Sub-Saharan , Africa Democratic Republic of Congo Yakusa f-cg
  • Language: Kele
  • Type: sound recordings , field recordings , sound recording-musical
  • Identifier: http://hdl.handle.net/10962/169066 , vital:41680 , International Library of African Music, Rhodes University, Grahamstown, South Africa , TR0129-01
  • Description: This recording of the sound of genuine talking drums was made on the banks of the Congo River near Stanleyville, where the river steamers coming up-stream form Leopoldville, 1000 miles away, are held up bt the first rapids named after H. M. Stanley, the great explorer. He first saw them in 1876 on his famous first journey across Africa from East to West. The Lokele people of this region have always been famous for their drum messages. Stanley, writing about them said "They have not yet adopted electric signals but possess a system of communication quite as effective. Their huge drums by being struck in several parts convey language as clear to the initiated as vocal speech." The drum messages can still be heard up and down the river although these days with modern communication methods the people do not need to use their drums as they used to, and consequently it is said to be dying out as so many other African crafts. A missionary , the Reverand John Carrington, from the Baptist mission at Yakusu wrote an excellent book on these Lokele talking drums of the Upper Congo river, the same kind of drums that Stanley heard. For years he had been studying the Lokele language of the people around the mission at Yakusu, but at the time of recording he was many miles down the river, and not available. His colleague from the Yakusu Mission, Mr W. H. Ford, who had also made a keen study of the language, here explains something of the theory behind the sending of drum messages in Central Congo, as experienced both by himeself and by John Carrington. Drum messaages with wooden slit drum.
  • Full Text: false
  • Date Issued: 1952

Chingoma chakubaruka

Wafumuwane mukazgaka wa chihowe

Chingoma chakubaruka

Kayuni

Tawikana mutima pano

Benura tiwoni memba

Kayuni

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