Clarence a HallClarence A. Hall, Jr., is Professor of Geology in the Department of Earth and Space Science at the University of California, Los Angeles, Director Emeritus of the University of California's White Mountain Research Station, and Dean Emeritus ofthe Division of Physical Science, College of Letters and Science, UCLA. He is editor of Natural History of the White-Inyo Range, Eastern California (UC Press) among other books. Read More Read Less