Plan of the properties of the Buffelsdoorn Estate & Gold Mining Cº L d and of the Western Districts Estates & Gold Mining Cº L d

Míreanna comhchosúla

• Map of the mining districts of the Western States
  de réir: Lindgren Waldemar
  Foilsithe / Cruthaithe: (1907)
• Plans of Calumet and Hecla conglomerate mine
  de réir: Estados Unidos Geological Survey
  Foilsithe / Cruthaithe: ([19--])
• Geologic sections of Elm river mine (contact copper co.), T. 52 N., R. 36 W.
  de réir: Estados Unidos Geological Survey
  Foilsithe / Cruthaithe: ([19--])
• Estats de l'eglise et de Toscane
  de réir: Sanson Nicolas, et al.
  Foilsithe / Cruthaithe: ([16--])
• Mine more coal
  de réir: Carvalho Abílio Pacheco de, et al.
  Foilsithe / Cruthaithe: ([1918])