A collection of occasional surveys of iron, coal and oil districts in the United States, made during the last ten years

Eitemau Tebyg

• The iron manufacturer's guide to the furnaces, forges and rolling mills of the United States, with discussions of irons as a chemical element, an American ore, and a manufactured article, in commerce and in history
  gan: Lesley, J. P. (J. Peter), 1819-1903
  Cyhoeddwyd: (1859)
• The iron manufacturer's guide to the furnaces, forges and rolling mills of the United States
  gan: Lesley, J. P. (J. Peter), 1819-1903
  Cyhoeddwyd: (1859)
• Notes of a visit to coal- and iron-mines and ironworks in the United States
  gan: Bell, I. Lowthian (Isaac Lowthian), 1816-1904
  Cyhoeddwyd: (1875)
• The coal-regions of America: their topography, geology, and development
  gan: Macfarlane, James, 1819-1885
  Cyhoeddwyd: (1875)
• What the Coal Commission found
  gan: Hunt, Edward Eyre, 1885-
  Cyhoeddwyd: (1925)