Photographs of California from the United States Geological Exploration of the Fortieth Parallel [graphic].Watkins, Carleton E., 1829-19161870.engPhotographs in California of Mount Shasta, Mount Lassen, and the Whitney GlacierCarleton E. Watkins was a San Francisco photographer who worked both with official surveys and independently to photograph California, Nevada and Utah. In 1867 he served with Clarence King as the official photographer to the California Geological Survey, and in 1870 was the official photographer for King's Geological Exploration of the Fortieth Parallel.Letterpress captions on mounts: U. S. Engineer Department, Geological Exploration, Fortieth Parallel, C. E. Watkins, Photographer. Numbers and titles supplied in brackets on mount versos.Accompanied by a box list.