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Publication Extents

Not all publications have extents, not all extents are completely accurate
Introduction
M.J. Munn
1912, Bulletin 471-A
No abstract available....
Thirty-third annual report of the Director of the United States Geological Survey
George Otis Smith
1912, Annual Report 33
The appropriations for the work of the United States Geological Survey for the fiscal year 1911-12 comprised items amounting to $1,507,920. The plan of operations was approved by the Secretary of the Interior and a detailed statement of the work of the several branches and divisions of the Survey is...