p. [177]: The name T'u-fan seems to be a transcription of Tüpöt which,
in turn, became our Tibet. (J. Hamilton).—The Uigurs are the Hui-ho or Hui-hu of Chinese sources.
p. [179]: On relations with Central Asia and the West see Ho Chien-min and Hsiang Ta, whose classical studies on Ch'ang-an city life have recently been strongly criticized by Chinese scholars.—Some authors (J. K. Rideout) point to the growing influence of eunuchs in this period.—The sources paint the pictures of the Empress Wu in very dark colours. A more detailed study of this period seems to be necessary.
p. [180]: The best study of "family privileges" (yin) in general is by E. A. Kracke, Civil Service in Early Sung China, Cambridge, Mass. 1953.
p. [180]-1: The economic importance of organized Buddhism has been studied by many authors, especially J. Gernet, Yang Lien-sheng, Ch'üan Han-sheng, K. Tamai and R. Michihata.
p. [182]: The best comprehensive study on T'ang prose in English is still E. D. Edwards, Chinese Prose Literature of the T'ang Period, London 1937-8, 2 vol. On Li T'ai-po and Po Chü-i we have well-written books by A. Waley, The Poetry and Career of Li Po, London 1951 and The Life and Times of Po Chü-i, London 1950.—On the "free poem" (tz'ŭ), which technically is not a free poem, see A. Hoffmann and Hu Shih. For the early Chinese theatre, the classical study is still Wang Kuo-wei's analysis, but there is an almost unbelievable number of studies constantly written in China and Japan, especially on the later theatre and drama.
p. [184]: Conditions at the court of Hsüan Tsung and the life of Yang Kui-fei have been studied by Howard Levy and others, An Lu-shan's importance mainly by E. G. Pulleyblank, The Background of the Rebellion of An Lu-shan, London 1955.
p. [187]: The tax reform of Yang Yen has been studied by K. Hino; the most important figures in T'ang economic history are Liu Yen (studied by Chü Ch'ing-yüan) and Lu Chih (754-805; studied by E. Balazs and others).
p. [187]-8: The conditions at the time of this persecution are well described by E. O. Reischauer, Ennin's Travels in T'ang China, New York 1955, on the basis of his Ennin's Diary. The Record of a Pilgrimage to China, New York 1955. The persecution of Buddhism has been analysed in its economic character by Niida Noboru and other Japanese scholars.—Metal statues had to be delivered to the Salt and Iron Office in order to be converted into cash; iron statues were collected by local offices for the production of agricultural implements; figures in gold, silver or other rare materials were to be handed over to the Finance Office. Figures made of stone, clay or wood were not affected (Michihata).
p. [189]: It seems important to note that popular movements are often not led by simple farmers or members of the lower classes. There are other salt merchants and persons of similar status known as leaders.