erovnuli-samecniero-biblioteka Search for 'au:"Simpson, Edward S."'

Sources of industrial potash in Western Australia,

By Simpson, Edward S..
Perth, F.W. Simpson, government printer, 1919 .
46 p. 21 cm..

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The mining geology of Comet Vale and Goongarrie, North Coolgardie goldfield,

By Jutson, John Thomas..
Perth, F.W. Simpson, government printer, 1921 .
76, X p. , Issued under the authority of the Hon.J. Scaddan ... minister for mines. 21 cm..

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The geology and mineral resources of the Yalgoo goldfield. Pt. I. The Warriedar gold-mining centre,

By Feldtmann, Francis Rudolf,.
Perth, F.W. Simpson, government printer, 1921 .
40 p. 21 cm..

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