To the officers and assistants at the Metropolitan Museum of Art in New York, the Art Institute of Chicago, the Museum of Fine Arts in Boston, and the Print Department in the Library of Congress in Washington, indebtedness is here publicly acknowledged with the regret that I may not speak of individuals. Photographs of tapestries are credited to Messrs. A. Giraudon, Paris; J. Laurent, Madrid; Alinari, Florence; Wm