It would be impossible to list all those who in one way or another have been of help to me in my study of Chinese and Japanese landscape painting, for this work has been possible only through the labors of my colleagues, both Western and Oriental. However I wish to acknowledge above all my indebtedness to my teachers at Harvard University, Professor Benjamin Rowland and Mr. Laurence Sickman, with whom I studied Chinese painting and Mr. Langdon Warner, under whom I studied Japanese painting.
No one working in this field can do so without drawing heavily upon the scholarship of Professor Osvald Siren whose books on Chinese painting and translations from Chinese texts have been of immeasurable help in my studies. The same may be said of the translations undertaken by Professor Alexander Soper and Miss Shio Sakanishi, and to them I wish to express my thanks for letting me quote from their writings.
I wish to thank the private collectors and museums who have been kind enough to permit me to draw upon their material for the illustrations in this book, especially Mr. John Pope of the Freer Gallery of Art in Washington, Mr. Robert Paine of the Boston Museum of Fine Arts, Mr. Laurence Sickman of the Nelson Gallery in Kansas City, Miss Hiroko Kojima of the National Museum in Tokyo, Miss Akiko Ueno of Bijutsu Kenkyujō, and Dr. Victoria Contag of the University of Mainz. Finally, I am deeply indebted to my wife, whose help and advice has been a tremendous asset throughout the writing of this book; it may indeed be said that it would not have been written without her aid and encouragement.