Xu Jingheng's Hengtang Anthology and Lost Articles

With thirty original volumes, Hengtang Anthology by Xu Jingheng got lost after the middle of the Ming Dynasty. During the period of Emperor Qianlong of the Qing Dynasty, when Complete Library in Four Divisions was being compiled, Xu's lost articles found in Yongle Canon were put together and worked into twenty volumes. Quite a number of them were missing, with only one lost poem coming from Dong'ou Collected Poems. There are three lost articles in Complete Poems of the Song Dynasty, Supplementary Amplifications of the Individual Collection of a Book Compiled from Complete Library in Four Divisions. Today I have found four lost poems in Dong'ou Collected Poems and Continuation of Dong'ou Collected Poems, three in Complete Library in Four Divisions and one in Volume by Natives, Yongjia Anthology. However, there are still many lost articles or poems which can be found in other books.