The studies collected here derive in large part from the collaborative Chin history project, to which Professors Chan and Franke have made a massive contributuion. The Jurchens lived in northeastern Manchuria as hunters, fishers and farmers, until 1115 when they founded a dynastic state called Chin and went on to conquer northern China. Some of the studies here deal with the way of life of the pre-dynastic Jurchens, others with the law and institutions of the Chin state, and the treaties by which they sought to regulate their conflict with the Sung dynasty to the south. Taken together, these studies depict the varying mixture of Chinese and native traditions and customs that were adopted, presenting a detailed analysis of this multinational regime in medieval China.