Dà huán dān jīn hǔ bái lóng lùn 大還丹金虎白龍論
Discourse on the Gold-Tiger and White-Dragon of the Great Return-Elixir
by 還陽子 (Huán yáng zǐ)
A late-Táng / Five-Dynasties alchemical discourse on the gold-tiger (jīn hǔ 金虎 = lead, yīn) and white-dragon (bái lóng 白龍 = mercury, yáng) pair in the cycling of the great return-elixir. Preserved as DZ 937 / CT 937 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類).
Dating. 9th–10th century. Dynasty: 唐-五代.