元砂□
元砂□
死砂十六兩，爲之純陽匱。添新換舊煎，便是長生匱。將前抽出死硃砂一斤，不須細研，將前養已受炁砂四両，四抱一養之，入灰缸鼎火四両，以砂接砂，緜緜不絕。如要用，取熟砂□□添新砂補舊，乃□
生之路也。不離男女，生男□長出兒孫又產孫，
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Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji
