Abstract
IN reference to the inquiry of Dr. Walter Leaf in NATURE of March 15 as to the interpretation of a passage of Strabo, the fact may possibly be of some interest that in the island of Mors, in Denmark, bricks are made from a local sandy clay which, after burning, float in water. These bricks are used, I understand, both as a refractory material and for ordinary building purposes, their lightness and porosity giving them certain advantages for the latter purpose. Their mechanical strength is said to be considerable. The porosity is not obtained by the addition of combustible or volatile matter during moulding.
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DESCH, C. Floating Earths. Nature 99, 104 (1917). https://doi.org/10.1038/099104a0
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DOI: https://doi.org/10.1038/099104a0
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