Dài Tiānzhāng 戴天章 (1644–1722, 清), zì Línjiāo 麟郊, late-life hào Běishān 北山 (universally cited 戴北山 Dài Běishān). Native of Shàngyuán 上元 county (modern Jiāngníng 江寧, Nánjīng).
Studied the jǔyè under Lín Qīngléi 林青雷 in his youth and held a xiángshēng 庠生 (district student) status, but devoted himself principally to scholarship and medicine. He was learned across the jīngzǐbǎijiā, astronomy, calendrical mathematics, archery, music, calligraphy, and painting — but distinguished himself in medicine, where he treated patients without charge.
His major surviving work is the Guǎng wēnyì lùn 廣瘟疫論 (KR3eg023), in 4 juǎn with a 1-juǎn prescription supplement, completed ca. Kāngxī 14 (1675). The book is the principal extension and systematic exposition of Wú Yǒuxìng’s Wēnyì lùn (KR3eg004) — Dài elaborates and clinicises Wú’s pestilential-qi doctrine, with particular emphasis on the differential diagnosis of internally-developing warm-heat disease and on latent-qi pathology. He also wrote works on cold-damage, on coughs (Ké lùn zhù 咳論注), on malaria (Nüè lùn zhù 瘧論注), and the Fúyá yànfāng 佛崖驗方, but most are lost.
The Guǎng wēnyì lùn circulated initially only in manuscript in the Dài family’s Cúncún shūwū 存存書屋. In the early Qiánlóng period a pirated edition appeared under the false title Wēnyì míngbiàn 瘟疫明辨 attributed to Zhèng Diànyī 鄭奠一 of Shèxiàn 歙縣; Dài’s grandson Dài Zǔqǐ 戴祖啟 reprinted the authentic family text in Qiánlóng 43 (1778) to correct the record. The text was further reworked in late Qīng by Lù Màoxiū 陸懋修 (1864) and Hé Liánchén 何廉臣 (1909) as the Chóngdìng Guǎng wēnrè lùn (KR3eg006).
Source: Zhōng yī rén wù cí diǎn 中醫人物詞典 (Shanghai cishu, 1988); A+醫學百科.