Version history for Catchings, R.D., Goldman, M.R., Steedman, C.E., and Gandhok, G., 2004, Velocity models, first-arrival travel times, and geometries of 1991 and 1993 USGS land-based controlled-source seismic investigations in the San Francisco Bay Area, California: in-line shots: U.S. Geological Survey Open-File Report 2004-1423. Version 1.0, December 30, 2004 Intital release online at http://pubs.usgs.gov/of/2004/1423/