Includes information on agricultural workers, aqueducts, Concepcion Arguello, banking, booms, California Indians, cattle industry, Central Pacific Railroad, Chinese, Samuel Clemens, Colorado River, earthquakes, emigration, Spanish explorations, Gold Rush, hydroelectric power, irrigation, labor, Lincoln-Roosevelt League, Jack London, Los Angeles, Monterey, John Muir, New Spain, Frank Norris, Oil, Pony Express, Gaspar de Portola, transcontinental railroads, rancheros, ranchos, Russia, Russian American Fur Company, Russian colonists, Sacramento Valley, San Francisco, San Joaquin Valley, Sierra Nevada Mountains, Robert F. Stockton, strikes, Union Pacific Railroad, water, etc.