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  1. The chalk and flint formation : its origin, in harmony with a very ancient and a scientific modern theory of the world, illustrated with facts and specimens /
    By: Galloway, William Brown.
    Publication info: London :S. Low, Marston, Searle, & Rivington,1886.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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