開釜法

開釜法

臣按鼎釜堅密,號曰神室。兩釜之際,固以中黄,得火彌堅,其泥甚厚。理不宜槌鑿扣振,正應作利鋸兩三枚,遞用截之,亦可斲麤礪石之狀,如刀口以磨之。須至釜質,方可以鐵物漸漸擿開。仍作空格,仍仰上釜,著上釜,拂取飛精也。方用雄雞羽,雞是酉禽,意謂用白羽爲宜。先預置覓白雌雄雞,養生卵伏出,純取其白雄鶵兩三頭,孤養於他處,至二年可用。當拔取兩翅頭料風毛,各三枚,勿水洗拭之,以掃飛霜華也。以丹納金筒中,密塞口,以錦囊盛之。方云:帶肘後者,正是。寳貴不欲離身,亦恐未服之間,脱能神化去故也。

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