Correspondence and working papers of a number of U.S. Geological Survey paleontologists who were once quartered in the U.S. National Museum of Natural History have been transferred to the Smithsonian Archives during the past few years. Major space reallocations in the Museum resulted in consolidation of USGS Paleontology and Stratigraphy Branch research activities into about one-quarter the space occupied before 1988. Consequently, most of the records and many of the fossil collections were moved out of the Museum.