Mr Felix Leaky, of Glasgow University, who has been most patient
and helpful with advice. Among those others who have assisted me
in a variety of ways, and whom I should like to take this opportunity
of thanking once again, are: M. Jean Adhémar, of the Bibliothèque
Nationale; Mr John Beckwith, of the Victoria and Albert Museum;
M. de Broglie, of the Musée Condé, Chantilly; Mr Gordon Crocker;
Miss Helen Darbishire; Miss Bernice Davidson, of the Frick Col-
lection; M. Claude Ferment; Mr H. G. Fletcher, of the Cheltenham
Art Gallery; M. Armand Godoy; Mrs Marie-Louise Hemphill; Mr
Asa Lingard; Mrs Dora Lykiardopulo; Mrs F.J. Mather, Jr.; Mr
Peter Mayne; Mr O' Hana; M. Claude Pichois; Mr Peter Quennell;
Mr Graham Reynolds, of the Victoria and Albert Museum; M. Phi-
lippe Roberts-Jones; Mr Bryan Robertson; Mr Denys Sutton; and
M.A. Veinstein, of the Bibliothèque de l'Arsénal, Paris. My thanks
are also due to the authorities of the following Museums and Galleries
who have kindly granted permission for works of art in their care to
be produced here: the Victoria and Albert Museum, the Tate Gallery
and the Wallace Collection, London; the Musée du Louvre, Paris;
the Metropolitan Museum, and the Frick Collection, New York;
the Fodor Museum, Amsterdam; the Musée d'Art Moderne, Brussels;
the Smithsonian Institution, Washington; the Museum of Fine Arts,
Boston; the Musée Fabre, Montpellier; the Musée Ingres, Montau-
ban; the Musée Condé, Chantilly; the Museums at Autun, Bordeaux,
Bourg-en-Bresse, Lille, Lyon, Metz, Nantes, Nîmes, Rouen,
Saint-Lô, Toulouse and Versailles.

I wish to dedicate this edition to the memory of my friend Hallam
Fordham.

J.M.

-vi-