كتب ذات صلة

Systême silurien du centre de la Bohême.

Systême silurien du centre de la Bohême.

Systême silurien du centre de la Bohême.

Systême silurien du centre de la Bohême.

• Sixth annual report of the United States geological survey of the Territories, embracing portions of Montana, Idaho, Wyoming, and Utah : being a report of progress of the explorations for the year 1872
  المؤلفون: Hayden, F. V.
• Preliminary report of the United States Geological Survey of Wyoming : and portions of contiguous territories, (being a second annual report of progress)
  المؤلفون: Hayden, F. V.
• Descriptions of new species of fossils : from the cretaceous formations of Nebraska, with observations upon Baculites ovatus and B. compressus, and the progressive development of the septa in baculites, ammonites, and scaphites
  المؤلفون: Meek, F. B. ,  Hall, James

• The whalebone whales of the western North Atlantic compared with those occurring in European waters
  المؤلفون: True, Frederick William
• Statement by the Secretary.
  
• Statement by the Secretary.