Dà dān qiān gǒng lùn 大丹鉛汞論
Discourse on the Lead-and-Mercury of the Great Elixir
by 金竹坡 (Jīn Zhúpō) — Sòng Daoist alchemist
A Sòng alchemical discourse on lead and mercury (qiān gǒng 鉛汞) as the twin substrates of the great elixir. Preserved as DZ 923 / CT 923 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類).
Dating. 11th century or later. Dynasty: 宋.