Late-Qīng physician, otherwise undocumented. Author of Huòluàn ránxī shuō 霍亂燃犀說 (KR3eg042), a treatise on cholera. The title’s metaphor — ránxī 燃犀 “burning rhinoceros-horn” — is a Chinese literary topos for illuminating hidden / mysterious matters, fitting for a treatise attempting to clarify the disease the Chinese-medical tradition was still working to understand.
The catalog meta gives the author as 許志; some sources for this title give the author as 許起 (Xǔ Qǐ), and it is possible the catalog meta has a graphic variant. No definitive biographical material located. No CBDB record.