{"type": {"key": "/type/edition"}, "publish_date": "1906", "publish_country": "xx", "languages": [{"key": "/languages/eng"}], "title": "An experimental study of the image-forming powers of various types of eyes", "authors": [{"key": "/authors/OL5669930A"}], "oclc_numbers": ["76981902"], "notes": {"type": "/type/text", "value": "Thesis (Ph. D.)--Harvard University, 1906.\n\nAccess to portions of this material may be restricted."}, "links": [{"url": "http://nrs.harvard.edu/urn-3:HUL.FIG:003810937", "title": "External source"}], "source_records": ["marc:harvard_bibliographic_metadata/20220215_014.bib.mrc:66751045:1106"], "full_title": "An experimental study of the image-forming powers of various types of eyes", "works": [{"key": "/works/OL43884871W"}], "key": "/books/OL59831739M", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-08-14T12:59:43.729029"}, "last_modified": {"type": "/type/datetime", "value": "2025-08-14T12:59:43.729029"}}