The cover art is a resized, edited version of the image 'Gold mining: a man using a hose to wash away soil. Wood engraving.', belonging to the Wellcome Library, London, and released by them under the Creative Commons Attribution only licence CC BY 4.0. It may be viewed at http://wellcomeimages.org/indexplus/result.html?_IXMAXHITS_=1&_IXACTION_=query&_IXFIRST_=4&_IXSR_=VghKFQCP1JF&_IXSS_=_IXMAXHITS_%3d15%26_IXFPFX_%3dtemplates%252ft%26_IXFIRST_%3d1%26c%3d%2522historical%2bimages%2522%26%252asform%3dwellcome%252dimages%26%2524%253dsi%3dtext%26_IXACTION_%3dquery%26i_pre%3d%26IXTO%3d%26t%3d%26_IXINITSR_%3dy%26i_num%3d%26%2524%253dsort%3dsort%2bsortexpr%2bimage_sort%26w%3d%26%2524%253ds%3dgold%2bmining%26IXFROM%3d%26_IXshc%3dy%26%2524%2b%2528%2528with%2bwi_sfgu%2bis%2bY%2529%2band%2bnot%2b%2528%2522contemporary%2bclinical%2bimages%2522%2bindex%2bwi_collection%2bor%2b%2522corporate%2bimages%2522%2bindex%2bwi_collection%2529%2529%2band%2bnot%2bwith%2bsys_deleted%3d%252e%26_IXrescount%3d5&_IXSPFX_=templates%2ft&_IXFPFX_=templates%2ft
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Uploaded to IFDB by Teaspoon on February 29, 2016