Tài qīng shí bì jì 太清石壁記
Great-Clarity Record of the Stone Wall
compiled by 楚澤先生 (Chǔ zé xiān sheng) — Táng pseudonymous compiler
A mid-Táng alchemical compendium (758 or 759) compiled by the pseudonymous “Chǔ zé xiān sheng” 楚澤先生, collecting alchemical recipes (wài dān 外丹) — particularly for mercuric and arsenical elixirs — purportedly derived from inscriptions on a “stone wall” (shí bì 石壁). An important source for mid-Táng alchemical practice. Preserved as DZ 881 / CT 881 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類) in 3 juàn.
Dating. Compiled 758 or 759. Dynasty: 唐.