Library

Newly compiled Zhang Zhongjing's annotated *Shanghan Baizheng Ge* (Song on Hundred Syndromes of Cold Damage), five volumes; *Fawei Lun* (Discourse on Unveiling the Profound), two volumes. Attributed to Xu Shuwei (courtesy name Zhike) of Baisha. *Zhichai Shulu Jieti* records: Xu Shuwei's *Shanghan Ge* (Song on Cold Damage), three volumes, comprising one hundred chapters, all based on Zhang Zhongjing's annotations. There are also eighty-one chapters on treatment methods, thirty-six diagrams of Zhang Zhongjing's pulse methods, *Yi Shanghan Lun* (Supplement to the Treatise on Cold Damage), two volumes, and *Bianlei*, five volumes; these have not been seen.

The *Siku Quanshu Zongmu Tiyao* (Summary of the Complete Library of Four Treasuries) records: Xu Shuwei, courtesy name Zhike, was from Zhenzhou. He passed the imperial examination in the second year of Shaoxing. Physicians refer to him as Scholar Xu, though his official posts remain unknown. Examination reveals that *Shanghan Ge* is identical to *Baizheng Ge*; the discrepancy between three and five volumes is likely a textual error. *Yi Shanghan Lun* is synonymous with *Fawei Lun*. Xu Shuwei was from Yixing, Yangzhou. Orphaned in his youth, he studied diligently, reading widely across all books, with particular profundity in medicine. In the early Jianyan era, the rebel Zhang Yu captured Zhenzhou, followed by a severe epidemic. Xu Zhike visited households throughout the locality, diagnosed illnesses, and administered medicines, saving eight or nine out of ten patients. He served as an instructor in Huizhou and Hangzhou, later promoted to a central government rank. A shadow-printed Song manuscript bears a preface by Zhang Tan dated Gengyin of the Kaodao era. References also appear in *Duxing Zazhi*, *Xixi Conghua*, and Zhang Gao's *Yishuo*. Xu's *Leizheng Puji Benshi Fang* (General Beneficent Formulas for Differentiated Syndromes), ten volumes, is recorded in the *Book of Song: Bibliography*, *Shulu Jieti*, *Wenxian Tongkao*, and *Siku Quanshu*. I have only encountered it in *Shulu Jieti*. The *Maifa Leibian* has long been lost. The "eighty-one methods" likely correspond to the *Shanghan Jiushi Lun* (Treatise on Ninety Cases of Cold Damage) and *Baizheng Fawei* (Unveiling the Profound of Hundred Syndromes) recorded in Zhang Yuexiao's library catalog. Since the Yuan and Ming dynasties, this work has not been prominent.

It was not included in the *Siku Quanshu*, nor had it been seen by Ruan Yuan (Ruan Wenda) or Zhang Yuexiao. Only Qian Zunwang recorded it in his *Dushu Minqiu Ji* (Record of Books Read with Acute Perception). The Yuan edition collected by Qian Zunwang now belongs to me. Just as Confucius is to Confucianism, Zhang Zhongjing is to medicine. Just as the "Four Books" are to Confucian texts, the *Shanghan Lun* (Treatise on Cold Damage) is to medical texts. During the Song dynasty, scholars of this discipline produced various works: Cheng Wuji's commentary, Li Cheng's *Yaozhi* (Essentials), Wang Shi's *Zhengzhi* (Diagnosis and Treatment), Han Zhihe's *Weizhi* (Subtle Principles), Pang Anchang's *Zongbing Lun* (General Discussion on Diseases), Zhu Yizhong's *Huo Ren Shu* (Book That Revives People), and Qian Wenli's *Baiwen Ge* (Song on Hundred Questions). Although each had its strengths, Xu Zhike's work best captures their essence. The *Baizheng Ge* uses seven-character rhymed verses, comprehensive in meaning yet concise in language; the *Fawei Lun* explores the subtle and profound, achieving insightful and spiritual understanding. This invites admiration for the depth and profundity of Xu Zhike's learning, which surpasses those with superficial skills or narrow perspectives. In the Xinhai year of the Wanli era (Ming Dynasty), a commercial edition by Qiaoshantang combined them into four volumes. Compared with the Yuan edition, the Ming version not only altered the appearance significantly but also contained numerous interpolations and alterations. This is a common flaw in Ming printing, particularly egregious in medical texts. Fearing it might mislead quacks and endanger lives, I have re-engraved the Yuan edition to facilitate its widespread dissemination. May future students of medical literature, seeking Zhang Zhongjing's teachings through this text, avoid being ridiculed for neglecting their profession.

Written by Lu Xinyuan of Gui'an in the month of late winter of the Dingchou year (1877), specifically on the sixteenth day after the new moon.