I wish to thank M. Germain Bazin and members of his staff
too numerous to mention individually, for enabling me to
examine and photograph the paintings by Delacroix in the
Louvre under the best possible conditions; Mme Bouchot-
Saupique and M. Maurice Séyullaz, who with unfailing cour-
tesy accorded me like facilities in the Cabinet des dessins;
the curators of other museums, the collectors and dealers who
have supplied photographs of works in their care or possession
and given permission to reproduce them; Sir Anthony Blunt,
Douglas Cooper and Jack Goodison for encouragement and
criticism in the various phases of my research; Stephen Rees
Jones and Dr Robert Ratcliffe for much illuminating discussion
on nineteenth-century colour theory and practice.

My initial researches into Delacroix's use of colour were
aided by a grant from the Research Fund of the University
of London. In addition to this grant, I gratefully acknowledge
funds for travelling received from the Courtauld Institute,
King's College, Cambridge, and the University of Toronto.

© 1963 LEE JOHNSON

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