A Text-book of Coal-Mining ... With ... illustrations
A technical manual on coal mining by Herbert W. Hughes, published by Charles Griffin & Co. in London in 1892 for mining students and colliery engineers. The 247 numbered figures are line engravings of shaft fittings, pump cylinders, rail joints and bolted frames, drawn in section with hatched fills and italic letter keys useful as diagrammatic ornament or annotation models.
