Scope and Contents From the Collection: The collection consists of an unpublished article “The California Gold Dredger as an Instrument of Conservation” by Wendell Hammon, (Wendell Philucius Hammon), 1918-2006, correspondence regarding mining operations, and lists of gold dredging companies operating in California. Letter of rejection for publication in California journal of mines and geology / State of California, Department of Natural Resources, Division of Mines from Olaf P. Jenkins, Chief, State of California Department of...