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Theory and Practice of Mine Ventilation: a Text-book for Students and a Book of Reference for Managers and Under-managers

Nature volume 114, pages 78 (05 July 1924) | Download Citation



MR. BRYSON is an experienced teacher of mining and is well known as a writer in mining technology. He has been at considerable pains to present his material in that order and manner which renders it most readily assimilable by the majority of his readers. The subject is undergoing re-solution; its treatment just now is difficult, and there is evidence that the author has not found it easy to balance between obsolescent dogma on one side and the quicksands of controversy on the bther. The task is too Blondin-like to escape an occasional slip. We observe, for example, a repetition of the usual fallacy in reference to the origin of the “fuel cap” as the non-luminous mantle of a flame is inappropriately called. Nor do we agree with the neglect of the “dynamic water-gauge “at the expense of the “static gauge,” especially as the former is required in determining the efficiency of fans. Again, the simpler and more precise form of Pitot tube made by the Cambridge and Paul Scientific Instrument Company is to be preferred to the type illustrated, and the simpler British alternative is more satisfactory than the hygrodeik.

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