{"physical_format": "[Microform]", "pagination": "6, 1 leaf, 7-250 p. :", "type": {"key": "/type/edition"}, "publishers": ["W.B. Selheimer, Printer"], "series": ["Western Americana, 1550-1900 -- reel 408, no. 4127."], "notes": {"type": "/type/text", "value": "Report made to the Union Pacific Railroad Company, Eastern Division.\n\nFold. map in pocket of cover.\n\nReferences: Howes, U.S.IANA, no. P.54.\n\nMicrofilm. New Haven, Conn. : Research Publications, 1975. 1 reel ; 35 mm. (Western Americana ; Reel 408, no. 4127) "}, "number_of_pages": 250, "languages": [{"key": "/l/eng"}], "last_modified": {"type": "/type/datetime", "value": "2008-09-19 22:52:33.194812"}, "publish_date": "1869", "publish_country": "pau", "key": "/b/OL15438097M", "authors": [{"key": "/a/OL177323A"}], "title": "Report of surveys across the continent, in 1867-'68, on the thirty-fifth and thirty-second parellels, for a route extending the Kansas Pacific Railway to the Pacific Ocean at San Francisco and San Diego ...", "publish_places": ["Philadelphia"], "contributions": ["Kansas Pacific Railway Company."], "id": 21834385, "revision": 1}