PAGE Namaqua Copper Position Natal Coalfield.. Natal Iron Industry....... (m.d.)...... 57 Rennerfelt Electric Furnace.. Rock-Drills in America, History of. Rooiberg Company's New Property Roumanian Consolidated Oilfields. Tungsten and Tin Deposits, Classification of...... (m.d.)...... 371 Tungsten and Tin Ores in Burma.....Coggin Brown & Heron 191 Tungsten Deposits in Burma.....J. Coggin Brown(m.d.)...... 241 Tungsten Deposits of Burma........H. W. Turner (m.d.)...... Tungsten Ores......R. H. Rastall and W. H. Wilcockson.. Tungsten Reduction by Fansteel Process, C.H. Jones (m.d.) 123 Tungsten Resources of World...........F. L. Hess (m.d.)...... 124 Standard Arsenic (South Africa) Co.. Stannard, O. J........ Extraction of Tungstic Acid (m.d.)...... 54 Tin and Tungsten in French Indo-China Tin and Tungsten Ores in Burma......Coggin Brown & Heron 191 W. F. WHITE, Managing Director. EDWARD WALKER, M.Sc., F.G.S., Editor. PUBLISHED on the 15th of each month by THE MINING PUBLICATIONS, LTD., The author reviews the various theories that have been put forward to explain the origin of petro- He lays particular stress on the marine organic sources of origin, especially the small forms of organism both animal and vegetable, and adduces new evidence in favour of this theory. The author records his experiences of mining and milling in the Andes at an altitude of 16,000 ft. and gives particulars of conditions under which The China Clay Industry of the West of England......... Henry F. Collins 25 China Clay is one of the most important mineral products of the United Kingdom. The author describes its geological occurrence and minera- logical characteristics, the methods of mining and preparation for market, and the economic .... F. Wartenweiler and E. H. Croghan Bernard Smith's Hematites of West Cum- ..................................J. D. Kendall Abosso Gold; Benue (Northern Nigeria) Tin Mines; Cape Copper; El Oro Mining & Railway: Jantar Nigeria; Kamunting N the New Year's Honours List are the represent coal mining experience, while the others are of course well known in the world of metalliferous mining. We published an illustrated article on the process, as adapted to Rand practice, in the issue of August, 1918. HE Royal Statistical Society has ad urging the improvement of Government statistics. Last year we drew attention to the in complete and unsatisfactory nature of the returns of exports and imports and of the outputs of the mines. The Society's interests are of course far wider, but their report shows that in all Government departments the same ineffectiveness of the official labours in connection with statistics prevails. names of Mr. Robert Taylor, Mr. J. T. A Cargill, and Mr. E. Mackay Edgar. Mr. Taylor's knighthood marks the appreciation on the part of the Indian Government of Messrs. John Taylor & Sons' work for the mining industry of that dependency. Mr. Cargill is chairman of the Burma Oil Company, and a director of the Anglo-Persian. To mining engineers Mr. E. Mackay Edgar is chiefly known for his participation in the finance of the Urquhart Siberian group. ISAPPOINTMENT is freely expressed DISAPPOINTMENT is Balfour, in his capacity of Lord President of the Council, of the deputation from the Imperial College of Science and Technology, which addressed a memorial to him praying for the reconstitution of the College as a University competent to grant degrees. The battle between the College and London University has broken out openly once more, but we feel confident that Mr. Balfour will find some way out of the present apparent impasse that will prove acceptable to the College. MONG the Reviews of New Books in the current issue will be found one of unusual interest, written by Mr. J. D. Kendall, criticizing the Memoir of the Geological Survey on the Iron Ores of Cumberland and North Lancashire. Mr. Kendall's knowledge of Cumberland iron-ore deposits is unrivalled, and his book, "The Iron Ores of Great Britain," though written twenty-six years ago, is still the acknowledged authority. His controversy in days gone by with the Geological Survey will be remembered by some of our older readers; with regard to this episode we may remark that, though his views of the geology were eventually adopted, he never received any public credit. Under these circumstances, it is not surprising that in his review of the new Memoir he handles the author and the Survey without gloves. The Origin of Petroleum. Ever since petroleum became an important article of commerce, geology has been applied to its discovery, and naturally its origin, possible migration, and method of accumulation have formed important features in the discussions and investigations: As regards the origin, the various theories cover a wide range of possibilities. In this issue, Mr. I. A. Stigand contributes an important paper on the subject. He reviews the many suggestions that have been proffered, and he adduces evidence based on personal observation. Mr. Stigand is an oil geologist of wide experience in many parts of the world, and he is also a keen student of the literature, as is evidenced by his full refer |