Lóng hǔ huán dān jué sòng 龍虎還丹訣頌

Versified Instructions on the Dragon-Tiger Return-Elixir

by 林太古 (Lín Tàigǔ) — Northern-Sòng Daoist

A Northern-Sòng versified nèi dān treatise on the dragon-tiger elixir. Preserved as DZ 1082 / CT 1082 (Tài xuán bù 太玄部).

Dating. Northern Sòng. Dynasty: 北宋.