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  1. Report on the geology of Northern and Southern California embracing the mineral and agricultural resources of those sections, with statistics of the northern, southern and middle mines / by John B. Trask
    By: Trask, John B. (John Boardman), - Making of America Project.
    Publication info: [Sacramento] :J. Allen, State Printer,[1856]
    Holding Institution: University of California Libraries (archive.org)
    View Book