{"notes": {"type": "/type/text", "value": "Pt. 2 has title: Report on the geology of the Lake Superior land district; publisher: A. B. Hamilton."}, "identifiers": {"librarything": ["4314509"]}, "title": "Report on the geology and topography of a portion of the Lake Superior land district in the State of Michigan", "authors": [{"key": "/authors/OL158976A"}], "publish_date": "1850", "other_titles": ["Report on the geology of the Lake Superior land district."], "publishers": ["Printed for the House of Reps."], "table_of_contents": [{"level": 0, "title": "pt. 1. Copper lands.", "type": {"key": "/type/toc_item"}}, {"level": 0, "title": "pt. 2. The iron region, together with the general geology.", "type": {"key": "/type/toc_item"}}], "series": ["31st Congress, 1st session. Ho. of Reps. Ex. doc. ; no. 69", "v. 2: Special session, March 1851. Senate. Executive ; no. 4", "Senate executive document (United States. Congress. Senate ) ;", "32nd Congress, special session, no. 4."], "lc_classifications": ["TN24.M5 F67"], "publish_places": ["Washington"], "contributions": ["Whitney, J. D. 1819-1896, joint author."], "pagination": "2 v.", "source_records": ["marc:marc_loc_2016/BooksAll.2016.part42.utf8:271737011:1798", "marc:marc_columbia/Columbia-extract-20221130-005.mrc:384886864:1983", "marc:harvard_bibliographic_metadata/20220215_039.bib.mrc:224866555:5228"], "dewey_decimal_class": ["553/.09774/9"], "languages": [{"key": "/languages/eng"}], "lccn": ["ca07003650"], "subjects": ["Copper mines and mining -- Superior, Lake, Region.", "Iron mines and mining -- Superior, Lake, Region.", "Geology -- Lake Superior region."], "publish_country": "dcu", "subject_place": ["Superior, Lake, Region.", "Lake Superior region."], "by_statement": "by J. W. Foster and J. D. Whitney.", "type": {"key": "/type/edition"}, "key": "/books/OL239982M", "works": [{"key": "/works/OL1488325W"}], "oclc_numbers": ["5335601"], "number_of_pages": 47, "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2008-04-01T03:28:50.625462"}, "last_modified": {"type": "/type/datetime", "value": "2026-05-22T13:25:20.952535"}}