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    • Societies and Academies - Nature

      Nature· 1 day ago

      A number of examples of this type in the Midland coalfield are described. Split seams of the type in which the seam rejoins are kindred phenomena, but in these cases the erosion was always contemporary ...

    • The Problem of X-ray Line Intensities - Nature

      Nature· 1 day ago

      REFERRING to the experiments mentioned by the present writer in recent issues of NATURE (January 30, p. 153; March 27, p. 448), and other work not yet published, we have had on several films ...

    • The Iridescent Colours of Insects - Nature

      Nature· 1 day ago

      I.—THE COLOURS OF “THIN FILMS.” IT is strange that the cause of the iridescent hues of insects and other animals should to a great extent still remain one of the unexplained problems of optics ...

    • Societies and Academies - Nature

      Nature· 1 day ago

      Physical Society, March 14.—Mr. S. Lupton, vice-president, in the chair.—A paper on the thermal expansion of porcelain was read by Mr. A. E. Tutton. The paper gives an account of experiments ...

    • Photoelectric Cells - Nature

      Nature· 1 day ago

      The manufacture of photo-cathodes is then outlined, and also the way in which they can be used for practical applications. Of great value is his critical table outlining the suitable types of ...