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By H. Wagner

In 1980 The South African Institute of Mining and Metallurgy instituted the Brigadier Stokes Memorial Award to commemorate the outstanding contribution to the South African mining industry made by Brigadier R.S.G. Stokes, who was an Honorary Life Fellow and a Past President of the Institute.

Jan 1, 1986

Book Review Sampling in the mineral and metallurgical processing industries. London, Institution of Mining and Metallurgy, 1973. 65 pp. illus. £5. The seven papers presented at a special meeting of the Institution of Mining and Metallurgy held in London in July, 1973, have been brought together under the above title.

Jan 11, 1973

Gerhardus Paulus Badenhorst passed away on 2nd December, 1989. Badie, as he was known to all, will be missed by his many friends and colleagues, and will be remembered by al who knew him as a warm-hearted person who was totally dedicated to the safety and health of the workers in the mining industry.

Jan 1, 1990

One of the largest and most exciting cast murals in the world has been erected in Johannesburg, forming the focal point of the large atrium in the new headquarters complex for Johannesburg Consolidated Investment Company Limited (JCI). Known as 'Rockface', this is waterwal1 structure formed of cast stainless-steel panels

Jan 1, 1986

By G. L. C. Young

The first full-scale Reichert cone concentrating plant to be erected at a large South African gold mine was at President Steyn Gold Mining Company, Welkom. ThiR plant was installed as a part of the runof-mine mill extension of 150000 t per month that was commissioned in 1976-1977.

Jan 1, 1982

By E. Barnea

This paper simplifies and provides a strict mathematical proof for an equation developed by R. J. Woody for the c alculation of solute recoveries in countercurrent decantation. The equation offers a convenient method for the optimization of flowsheets involving a simple countercurrent-decantation circuit.

Jan 1, 1978

By W. J. Kotzé

Die derde colloquium van die Spesialiste-afdeling van die SAIMM is op 19 November 1980by die Universiteit van Pretoria gehou en is deur sowat 40 mense bygewoon. Dr J. P. Hugo tree as Voorsitter op en heet al die aanwesiges welkom, en stel elke spreker om die beurt aan die vergadering voor.

Jan 1, 1981

By M. P. Mohring

A School on the Total Utilization of Coal Resources, which was organized by the Technical Programme Commitee of The South African Institute of Mining and Metallurgy in conjunction with the South African Coal Processing Society, was held in the Civic Theatre at Witbank from 30th October to 2nd November, 1989.

Jan 1, 1990

Papers of Interest The following papers may be of interest to members. APCOM The Thirteenth International Symposium on the Application of Operation Research and Computer Techniques for Decision Making in the Mineral Industries will be held at the Technical University CIausthaI, Federal Republic of Germany, from 6th to 11th October, 1975.

Jan 1, 1975

'We are going to be short of engineers for the foreseeable future, and particularly short of civil and heavy-current electrical engineers'. This is the basic message that emerges from the report 'The supply of and demand for engineers, 1984,t, prepared by Dr Philip Lloyd and Professor Bob Plewman for the Federation of Societies of Professional Engineers (FSPE).

Jan 1, 1985

Arthur Robert Owen Wiliams died on 18th May, 1989, at the age of 84. ARO, as he was known, was educated at Malvern in England, and graduated from the Royal School of Mines in 1926. He went to South Africa as a Learner Miner with Consolidated Gold Fields at Robinson Deep.

Jan 1, 1989

By G. F. Balderson

In response to the written contribution made by G. J. C. Young to the above paper, I would like to make the following points. Paragraph 1 The build-up of oxidized coatings on cone surfaces has not been a problem in other applications similar to that at President Steyn. The following companies have commented.

Jan 1, 1982

Tunnel Construction 90. London, Institution of Mining and Metallurgy, 1990. Reviewer: J.A. Cruise This is the published volume of papers presented at the Tunnel Construction 90 Conference, which was held in London in April 1990 under the auspices of The Institute of Mining and Metallurgy. Twenty papers are presented and their titles are listed below.

Jan 1, 1991

By R. W. O. Kersten

The South African Institute of Mining and Metallurgy collaboration with the Chamber of Mines of South Africa, arranged a colloquium to inform mine management of the current state of knowledge on the rockburst hazard associated with geological structures. The Colloquium was held at Mintek on 4th June, 1986, and attracted approximately 240 delegates.

Jan 1, 1986

By A. N. Brown

Underground rock boring was the topic of the mining vacation school held at the University of the Witwatersrand in the week 4th to 8th February, 1980. The School, which dealt with the management and economics of the subject, attracted 75 delegates from all sectors of the South African mining industry, in addition to two delegates from Germany and one from Zambia.

Jan 1, 1980

By P. E. Hand

SYNOPSIS This paper describes some of the markets for South African coal and their particular coal requirements. It describes how reserves are being used and suggests new strategies to make possible a synergistic ap¬proach that would benefit coal producers and end-users.

Jan 1, 1991

COLLOQUIUM AND GENERAL MEETING Developments in gold recovery processes A General Meeting and Metallurgical Colloquium on the above topic were held on Wednesday, 14th March, 1973, at Kelvin House, Johannesburg. Dr J. P. Hugo (President) was in the Chair. The colloquium was attended by 170 delegates, and was opened by the President at 9.15 a.m.

By Steven L. Crouch

The 'doorstopper' technique for determining the state of stress in rock requires that the stress concentration factors at the flat end of a borehole be known. Published values of these factors are widely variant. An axisymmetric finite element analysis of this problem has been made, yielding elastic stress concentration factors for different values of Poisson's ratio.

By D. Visser, P. D. Toens

The development of a continuous recording scintillation counter mounted on a cyclometer by P. D. Toens (Fellow) and D. Visser (Visitor) In order to facilitate ground radiometric surveys the Atomic Energy Board has developed a continuous recording device attached to a scintillation counter which is mounted on a cyclometer. Details concerning the construction are given.

By K. O. R. Gebhard

Direct reduction-are we moving in the right direction? by K. o. R. GEBHARD INTRODUCTION Numerous forecasts predict a rapid growth rate for direct-reduction processes. The figures quoted are so impressive that many a top manager must fear that he will fall behind in technical development if he does not base a substantial part of his future steelmaking for mass production on direct reduction.

Jan 2, 1974