{"version":"1.0","provider_name":"Museum of the History of Science","provider_url":"http:\/\/www.mhs.ox.ac.uk","author_name":"Paul Trafford","author_url":"http:\/\/www.mhs.ox.ac.uk\/author\/p_trafford\/","title":"25. Horary quadrant and altitude sundial by Christian Heiden, German, 1553 - Museum of the History of Science","type":"rich","width":600,"height":338,"html":"
25. Horary quadrant and altitude sundial by Christian Heiden, German, 1553<\/a><\/blockquote>\n