{"key": "/works/OL247975W", "title": "From the letter-files of S.W. Johnson, professor of agricultural chemistry in Yale University, 1856-1896, director of the Connecticut Agricultural Experiment Station, 1877-1900", "first_publish_date": "1913", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL155450A"}}], "type": {"key": "/type/work"}, "subjects": ["Agricultural chemistry"], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-10-23T17:48:36.752033"}, "last_modified": {"type": "/type/datetime", "value": "2021-01-27T01:46:26.486194"}}