1872 first edition, Report.... on the Sutro Tunnel, recommending a loan by the government in aid of the construction of said work. 988pp with index. Boards have corner wear and spine splitting. 1962 Adolph Sutro, a biography by Stewart 243pp with index. "Adolph Heinrich Joseph Sutro was a German-American engineer, politician and philanthropist who served as the 24th mayor of San Francisco from 1895 until 1897. Born a German Jew, he moved to Virginia City, Nevada and made a fortune at the Comstock Lode. In 1860, Sutro left San Francisco for Virginia City, Nevada after silver was found in the Comstock Lode with plans to continue selling cigars. He soon devised a concept for a tunnel to drain water from the mines and eliminate the threat of flooding. This concept became the Sutro Tunnel. In 1865 Sutro incorporated the Sutro Tunnel Company and was granted an exclusive charter to build the tunnel by the U.S. Congress in 1866. The project encountered financial difficulties, due in part to William Ralston (1826[x=#8211/]1875) of the Bank of California, who originally agreed to finance the project but later rescinded the offer. Over time, Sutro found other investors, including miners in the area. Sutro won miners's support after a disaster at the Yellow Jacket Mine on April 7, 1869, allowing him to lobby the Miner's Union in support of the Sutro Tunnel and begin construction on October 19, 1869." from wikipedia Nevada