The following papers were read:
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Dr. C. H. Desch, F.R.S.: The Crystallization of Metals.
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Dr. A. G. MacGregor: Ice Crystals in Glaciers compared with Quartz Crystals in Dynamically Metamorphosed Sandstones.
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Dr. P. G. Owston: The Crystallization of Ice.
Dr. MacGregor’s and Dr. P. G. Owston’s papers are printed below. Dr. Desch’s paper, owing to unavoidable delay, will be published in a later issue of this Journal.