Version History for:

  Hewett, D.F., Knoph, Adolph, and Calkins, F.C., 2003, The 
     USGS in the early 1900s - Reminiscences of D. Foster 
     Hewett, Adolph Knoph, and Frank C. Calkins:  U.S. 
     Geological Survey Open-File Report 97-267.

  2002
  Released online as a set of four MP3 files of the 
  lectures, an Adobe PDF file of the transcript, an 
  HTML front-end that includes the three photographs, and an 
  error-correction to Hewett's biographical sketch (James J. 
  Norton, letter to Pratt, June 1997.)  The PDF now has this 
  addition inserted after "rare-earth deposit." on the last 
  line:  

     "Less widely recognized is his leadership in the 
     Survey's strategic minerals program of World War II, 
     which was probably the trigger that set off the 
     tremendous expansion of the organization in the next 30 
     years, starting with the uranium program that began in 
     the late 1940s."

  Produced the PDF by salvaging the typed transcript 
  off of Pratt's 5-1/4" diskette that was made on an old 
  Leading Edge Model D computer.  MP3 stands for "MPEG audio 
  layer 3" which is a data-compression routine.  MPEG is an 
  acronym for Moving Pictures Experts Group.

  http://pubs.usgs.gov/of/0267/


  OF97-267-C - 1998
  Released as a set of two digital-audio compact discs (CDs).  
  This version includes a shortened version of the 
  introduction from the paper version on the back of the jewel 
  box as well as photographs of the three speakers taken 
  between 1901 and 1906 on the disc labels.  The discs were 
  produced by digitizing the 7-inch open-reel tape that was 
  recorded in 1962.  That tape is archived in Menlo Park.  


  OF97-267-B - 1997
  Released as a pair of audio-cassette tapes.  This version 
  includes a brief opening narrative by Walden Pratt but 
  lacks the introduction and biographical notes of the paper 
  version.


  OF97-267-A - 1997
  Initial release as a paper transcript of the lectures 
  transcribed and edited by Walden P. Pratt, U.S. Geological 
  Survey, Emeritus, Denver, Colo.  This version includes a 
  three-paragraph introduction and a paragraph of 
  biographical notes on each of the speakers