Dear All, A colleague is looking for source material on Emmanuel Maignan's catoptric sundial on a ceiling in the Palazzo Spada in Rome. Maignan published his own account of the design in Perspectiva horaria sive De horographia gnomonica tum theoretica, tum practica libri quatuor (Rome, 1648). Have there been any articles on the ceiling sundial in the various journals on sundials or astronomy?
Thanks for your help. Happy Holidays! Sara Sara J. Schechner Altazimuth Arts 42°36'N 71° 22'W West Newton, MA 02465 http://www.altazimutharts.com/ Sara J. Schechner, Ph.D. David P. Wheatland Curator of the Collection of Historical Scientific Instruments Lecturer on the History of Science Department of the History of Science, Harvard University Science Center 251c, 1 Oxford Street, Cambridge, MA 02138 Tel: 617-496-9542 | Fax: 617-495-3344 | sche...@fas.harvard.edu<mailto:sche...@fas.harvard.edu> | @SaraSchechner http://scholar.harvard.edu/saraschechner http://chsi.harvard.edu/
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