Records of the Maritime Customs Service of China (1854-1949) provides an excellent primary source collection for the study of China and its relations with the West in the late Qing and Republican periods. The records included in this collection - official correspondence, despatches, reports, memoranda, and private and confidential letters - constitute invaluable and often unique evidence of Chinese life, the economy and politics through the Taiping Rebellion, the Boxer Rebellion, the Revolution of 1911, the May 30 Movement, the two Sino-Japanese Wars, and the Chinese Civil War.