Xuán shuāng zhǎng shàng lù 玄霜掌上錄

Palm-Held Record of Mysterious Frost

Anonymous; Táng

A Táng alchemical notebook-text on the mysterious-frost elixir (xuán shuāng 玄霜) — a white crystalline elixir product — in “palm-held” (zhǎng shàng 掌上) handbook format. Preserved as DZ 945 / CT 945 (Dòngshén bù, Zhòng shù lèi 洞神部眾術類).