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Monday, July 13, 2020 | History

2 edition of Technology, employment, and output per man in phosphate-rock mining, 1880-1937 found in the catalog.

Technology, employment, and output per man in phosphate-rock mining, 1880-1937

A. Porter Haskell

Technology, employment, and output per man in phosphate-rock mining, 1880-1937

by A. Porter Haskell

  • 174 Want to read
  • 22 Currently reading

Published by Works Progress Administration, National Research Project in cooperation with Dept. of the Interior, Bureau of Mines in Philadelphia, Pa .
Written in English

    Places:
  • United States.
    • Subjects:
    • Phosphate mines and mining -- United States.,
    • Phosphate industry -- United States.,
    • Mining machinery.,
    • Miners -- United States.

    • Edition Notes

      Statementby A. Porter Haskell, Jr. and O.E. Kiessling.
      SeriesMineral technology and output per man studies ;, report no. E-7
      ContributionsKiessling, O. E. 1901-, National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.), United States. Bureau of Mines.
      Classifications
      LC ClassificationsTN23 .N35 no. E-7
      The Physical Object
      Paginationxvi, 130 p. :
      Number of Pages130
      ID Numbers
      Open LibraryOL182726M
      LC Control Numbera 41004376
      OCLC/WorldCa5900750


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the name of more than one author, Lotka only counted the senior author, and it is not surprising that we find an excessive number of papers per contributor in the upper ranges.

The output of papers in IO years listed by Lotka against the name of Emil Abderhalden undoubtedly. represents the work of a large group of collaborators.