Ashcroft, J. W.
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Vol vi, 1890/91 - Minutes of Proceedings for 10th September, 1891
Notes on the treatment of silver ores
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Vol vii, 1890/91 - Minutes of Proceedings for 8th September, 1892
Notes on the use of iron and steel in building construction
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Vol vii, 1890/91 - Plates
XXXIII - Notes on the use of iron and steel in building construction. Figs. 1-9
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Vol vii, 1890/91 - Plates
XXXIV - Notes on the use of iron and steel in building construction. Fig 10
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