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CJarl-e, K. de C. 1919, The bauxites of the Darling Range: Ann. 
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Jiiiso)), J. T. 1914, An outline of the physiographical geology of 
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JufHon. J. T. 1921, An example of gravitational drift of rock 
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Simpson, E. S. 1910-11, Excursions to Smith’s Mill, Zig Zag 
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Simpson, E. S. 1912, Laterite in Western Australia: Geol. IMag. 
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Simpson, E. S. 1919, Sources of industrial potash in WT'stern Aus- 
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Simpson, E. S. 1921, Cobaltiferous epsomite at Parkerville : Journ. 
Roy. Soe. W.A. Vol. VI, Part II. 
