DescriptionCrucible steel button.jpg English: Steel smelted from iron sand in a graphite crucible. Date 10 July 2011 Source Own work Author Jlahorn...
Samuel Benedict Christy Professor 1885-1914 bookplate- A glossary of mining and metallurgical terms (IA glossaryofmining00raymrich) (page 2 crop).jpg....
Works of Industry of all Nations, 1851- Official Descriptive and Illustrated Catalogue, Supplementary Volume (IA dli.granth.53590) (page 5 crop).jpg....
https://www.flickr.com/photos/internetarchivebookimages/14774159441/ operator: Flickr URL: https://live.staticflickr.com/5585/14774159441_fa00f01e2a_o.jpg...
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