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Item Item Analyses of samples from boreholes 2 and 3 on "Bankfontein 503" near Uitkyk, Transvaal(1936) Hall, PEThese two borehole were sunk by the Minnaar-Witbank Colliery during February 1936.Item Preliminary report of samples of No. 4 seam from borehole cores put down on Klipplaat 47, Tweefontein 69 and Waterpan 68 by Tweefontein United Collieries Limited(1937) Vogel, JCSamples of No. 4 seam were obtained from seven boreholes. The cores were, in part, broken and incomplete.Item The reduction in ash content of some South African Coals(1938) Vogel, JCThe high capital cost of coal hydrogenation plant makes it essential that oil output be maintained at high level as possible as this factor must primarily govern the choice of the coal to be used or the decision as to whether as coal is suitable for hydrogenation.Item The use of the calorimetric bomb for the determination of carbon in coal(1938) Adam, JThe method normally employed in determining the amount of carbon present in a combustible material is to combust in a system of oxygen.Item Report on lubricating oils used in supercharged Rolls Royce kerstrel engines(1939) Coetzee, JJThis report gives feedback on lubricating oils used in supercharged Rolls Royce kerstrel engines.Item Some factors relating to the use of standard alcohol-petrol blends in motor cars(1941) Tromp, FJThe object of this paper is to examine the feasibility of making blends of alcohol with standard petrol which can be used alternatively with standard petrol in ordinary motor cars without special engine adjustments.Item Survey report no. 57 Report on samples obtained from boreholes put down by the Anglo-Transvaal Collieries, Ltd., on the farm Grootpan 67 in the Witbank district of Transvaal(1943) Quass, FWThis report details a series of six boreholes put down by the Anglo-Transvaal collieries Ltd., on the farm Grootpan in the Witbank District of Transvaal.Item Report on the shipment of coal from the Merthyr colliery(1943) Tromp, FJThis report details the questioning of the liability of Merthyr coal to spontaneous combustion, and whether it constitutes a danger to life or property.Item Survey report No. 60 Report on boreholes put down by G.S.O., on the farms Leliefontein 25, Kranspan 85, Leeuwenburg 273, Smitsfield 137, Driefontein 139, coalbank 77, Liefgekozen 183, and Bloemkranz 185, in the Eastern portion of the Ermelo district of Transvaal(1943) Quass, FWIn September, 1939, an intensive survey of the torbanite occurrences in the vicinity of Mooifontein 287, north of Ermelo, was begun by the Geological survey.Item A contribution to the study of the production of carbonaceous zeolites from bituminous coal(1944) La Grange, CCThis report described work done at the Institute to ascertain whether South African coals could be used in the preparation of carbonaceous zeolites. The object of the present investigation was to determine whether South African coal would provide a suitable raw material for the production of zeolites.Item Survey report No. 67 Report on boreholes put down by the South African Iron and Steel Corporation on the farms welstand 34, Rietkuil 27, Diepspruit 25 and Roodepoort 24, In the Bethal district of Transvaal(1944) Gaigher, BDuring 1942 a series of 14 boreholes was put down by the South African Iron and Steel Industrial Corporation on the farms Welstand 34, Rietkuil 27, Diepspruit 25 and Roodepoort 24, in the Bethal District of TransvaalItem Survey report no. 66 Report put down by the Middleburg steam coal and coke company on the farms Hartebeestfontein 134 and Blesbokfontein 130 in the Bethal district of Transvaal(1944) Gaigher, BDuring the period December 1941 to January 1942, three boreholes were put down by the Middleburg Steam Coal and Coke Company on the farms Hartebeesfontein and Blesbokfontein in the Bethal district of Transvaal.Item Spontaneous combustion and ventilation on board ship(1944) Tromp, FJThis report contains details of investigations into spontaneous combustion and ventilation.Item First premises of the CSIR at Mint, Visagie street, Pretoria(1945) CSIRThe first CSIR premises located in Pretoria at the Public Works Department adjacent to the Mint in Visagie street.Item Scientific Research Council Act No. 33 of 1945(1945) Union of South AfricaThe document is an act to promote scientific and industrial research and has the purpose to (i) establish a South African Council for Scientific and Industrial Research, (ii) define the objects for which it is established, (iii) prescribe the manner in which it shall be managed and controlled, and (iv) provide for other incidental matters.Item The breakage of South African coal during preparation, haulage and shipping(1945) Tromp, FJ; Bushell, LAWork published by the FRI shows that the relative friability or the relative ease of disintegration of coal, can be measured by its shatter index.Item Report on samples taken from the No. seam at the Schoongezicht colliery, Witbank district(1945) Van der Merwe, CCThis is a report on samples taken from the No. seam at the Schoongezicht colliery, Witbank district. For the purpose of further and more detailed investigation, samples based on the proximate analyses were made up.Item Survey report No. 74 Report on boreholes put down by the consolidated Marsfield colliery (Anglo-Transvaal Collieries, Ltd.) on the farms Vogelfontein 4 and Waterval 18 in the Ermelo district of the Transvaal(1945) Van der Merwe, CCThis report deals with the characteristics of the coal as revealed by both these drilling programmes, although boreholes No. 1/41, 2/41 and 3/41 were excluded from the composite samples that were made up.Item Combustion tests on South African anthracite and coal(1946) Quass, FWIn order to establish the relative suitable for steam raising purposes of South African anthracite, firing tests were carried out in an experimental furnace on a number of nut size largely on the anthracite.