I am particularly grateful to curators of European collections, who have been 

 uniformly generous in their assistance. Special tlianks are due Mr. J. A. Gere of 

 the British Museum and Mr. James Laver of the Victoria and Albert Museum, 

 who have gone to considerable trouble to acquaint me with their great collections. 

 Others whose help must be particularly noted are Mr. Peter Murray, Courtauld 

 Institute of Art, University of London; Mme. R. Maquoy-Hendrickx of the Bib- 

 Hotheque Royale de Belgique, Brussels; Dr. Vladimir Novotny of the Narodni 

 Galerie, Prague; Dr. Wegner of the Graphische Sammlung, Munich; Dr. Wolf 

 Stubbe of the Kunsthalle, Hamburg; Dr. G, Busch of the Kunsthalle, Bremen; 

 Dr. Hans Mohle of the Staatiiche Museen, Berlin; Dr. Menz of the Staatliche 

 Kunstsammlungen, Dresden; Miss B. L. D. Ihle of the Boymans Museum, Rot- 

 terdam; and M. Jean Adhemar of the Bibliotheque Nationale, Paris. 



The excellent collections of chiaroscuro prints in the Museums of the Smith- 

 sonian Institution have formed a valuable basis for this monograph. These prints 

 include the set of Jackson's Venetian chiaroscuros, originally owned by Jackson's 

 patron, Joseph Smith, British Consul in Venice, now in the Rosenwald Collection, 

 National Gallery of Art, and the representative sampling of Jackson's work in the 

 Division of Graphic Arts, U.S. National Museum. 



I am indebted to the following museums which have kindly given permission 

 to reproduce Jackson prints in their collections. These are listed by catalog number. 



Smithsonian Institution 1 6, 1 8, 19, 20, 21, 22 (also in color), 24, 25, 26, 27, 28, 



29. 30. 39' 50> 5I' 52, 53 (also in color), 54, 55, 56, 57, 58, 63 

 Museum of Fine Arts, Boston (W. G. Russell Allen Estate) i (also in color), 



1 1, 14, 23, 33, 34, 38, 40 (also in color) 

 Fogg Art Museum 13 (also in color) 

 Worcester Art Museum 32 

 Metropolitan Museum of Art 5 (Rogers Fund) (also in color), 17, 31 (gift 



of Winslow Ames), 73 (Whittelsey Fund) 

 Philadelphia Museum of Art (John Frederick Lewis Collection) 2, 60, 61, 62, 



64, 65, 66, 67, 68, 74 

 British Museum 2 (in color), 6, 7, 8, 9, 10, 12, 15, 37, 41, 42, 43 (also in color), 



44, 45, 46, 47, 48, 49 (also in color), 59, 6^, 70, 71, 72, 75, 76 (photographs 



by John R. Freeman & Co.) 



XI 



