{"physical_format": "[microform] :", "pagination": "53 p. ;", "subtitle": "considered in its bearing upon the near future of Colorado and New Mexico, March, 1874.", "last_modified": {"type": "/type/datetime", "value": "2008-09-19 22:52:22.360312"}, "publishers": ["Inquirer Print. and Pub. Co."], "lccn": ["87810632"], "series": ["Western Americana, 1550-1900 -- reel 595, no. 6147."], "notes": {"type": "/type/text", "value": "Original wrappings.\n\nMaster microform held by: ResP.\n\nEberstadt no. I-111.\n\nHowes, U.S.IANA no. C.614.\n\nMicrofilm. Woodbridge, Conn. : Research Publications, 1975. 1 reel ; 35 mm. (Western Americana ; reel 595, no. 6147) "}, "number_of_pages": 53, "id": 21834330, "languages": [{"key": "/l/eng"}], "lc_classifications": ["JV6451 .W5"], "publish_date": "1874", "publish_country": "pau", "key": "/b/OL15438066M", "title_prefix": "The ", "title": "Westward march of emigration in the United States", "publish_places": ["Lancaster, PA"], "type": {"key": "/type/edition"}, "subjects": ["United States -- Emigration and immigration.", "Colorado -- Economic conditions.", "New Mexico -- Economic conditions."], "revision": 1}