12 books found
by Royal Geological Society of Cornwall. Library
1882
by Geological Survey (U.S.)
1916
by Geological Survey (U.S.)
1903
Vols. 1-44 include Proceedings of the annual meeting, 1889-1933, later published separately.
by Geological Survey of Wyoming and Portions of Contiguous Territories
1871
A summary of recent significant scientific and economic results accompanied by a list of geologic and hydrologic investigations in progress and a report on the status of topographic mapping.