Version history for


  Rubin, David M., Chezar, Henry, Harney, Jodi N., Topping, 
       David J., Melis, Theodore S., and Sherwood, 
       Christopher R., 2006, Underwater microscope for 
       measuring spatial and temporal changes in bed-
       sediment grain size:  U.S. Geological Survey Open-
       File Report 2006-1360 [available on the World Wide 
       Web at http://pubs.usgs.gov/of/2006/1360/ ].


  Version 1.0, December 1, 2006

  Initial release online at
  http://pubs.usgs.gov/of/2006/1360/