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1877 47B,D. E. Calif., W. Nevada. National Atlas Parts Of Eastern California And Western … |
1877 Topographical sketch, observatory site, … Exploration Book Topographical sketch showing observatory … |
1877 Apparatus for determining absolute perso … Exploration Book Apparatus for determining absolute perso … |
1877 77B. Part Of Central New Mexico. National Atlas Part Of Central New Mexico. Atlas Sheet … |