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Musée de Cluny. Paris (J. Leroy, photographer) Musée de Sculpture Comparée. Paris Dr. William Sturgis Bigelow, Boston (permission to photograph Japanese paintings) Mr. Frederick W. Gookin (use of photographs from Kenzan and Kano Gyokuraku, made specially for Mr. Gookin, Boston M. F. A. Giacomo Brogi, Florence Fratelli Alinari. Florence D. Anderson, Rome W. A. Mansell & Co., London F. Rothier, Reims, France, and Kaltenbacher, Amiens, France (the Ruskin photographer)

License to use photographs was also obtained from the Autotype Fine Art Company, Limited, London (the Michelangelo drawing, page 51), and from Baldwin Coolidge, Boston.