I am addressing many of these questions in an interpretive catalogue of several hundred sundials and timefinding instruments at the Adler Planetarium and Astronomy Museum in Chicago (to be published in two volumes), and in a separate book, Sundials, Science, and Social Change (appearing later).
A summary of the main points can be found in this article: "The Material Culture of Astronomy in Daily Life: Sundials, Science, and Social Change," Journal for the History of Astronomy 32 (2001): 189-222. I find that someone has scanned and posted it here: http://www.antique-horology.org/_Editorial/schechner.pdf Cheers, Sara Sara J. Schechner, Ph.D. David P. Wheatland Curator of the Collection of Historical Scientific Instruments Department of the History of Science, Harvard University Science Center 251c, 1 Oxford Street, Cambridge, MA 02138 Tel: 617-496-9542 | Fax: 617-496-5932 | [email protected]<mailto:[email protected]> http://www.fas.harvard.edu/~hsdept/chsi.html
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