Authors: Warington W. Smyth

  • A Rudimentary Treatise On Coal and Coal-Mining — Warington W. Smyth

    A Rudimentary Treatise On Coal and Coal-Mining — Warington W. Smyth

  • Coal And Coal Mining (1869) — Warington W. Smyth

    Coal And Coal Mining (1869) — Warington W. Smyth