雷公云∶凡使，须取新净者，以绢袋盛之；然后用地榆、五花皮、五方草三味各四两，
细锉，了，又以牡蛎约重四、五斤已来，先置于平底铛中，以物四向 令稳，然后着真珠于
上，了，方下锉了三件药，笼之，以浆水煮三日夜，勿令火歇；日满出之，用甘草汤淘之令
净后，于臼中捣令细，以绢罗重重筛过，却，更研二万下了用。
凡使，要不伤破及钻透者，方可用也。
雷公云∶凡使，勿用诸杂树上生者螺螺，不入药中用。凡采觅，须桑树东畔枝上者。
凡采得，去核子，用沸浆水浸淘七遍，令水遍沸，于瓷锅中熬令干用。
勿乱别修事，却无效也。
雷公云∶凡使，即是真珠母也。先去上粗皮，用盐并东流水于大瓷器中煮一伏时；了，
漉出，拭干，捣为末，研如粉；却，入锅子中，再用五花皮、地榆、阿胶三件，更用东流水
于瓷器中，如此淘之三度；待干，再研一万匝，方入药中用。
凡修事五两，以盐半分取则，第二度煮，用地榆、五花皮、阿胶各十两。
服之十两，永不得食山桃，令人丧目也。
雷公云∶凡使，勿用游波蕈骨。其虫骨真似海蛤，只是无面上光。其虫骨误饵之，令人
狂走拟投水，时人为之犯鬼心狂，并不是缘，曾误饵此虫骨。若服着，只以醋解之，立瘥。
水中淘三遍；拭干，细捣，研如粉，然后用。
凡一两，用地骨皮、柏叶各二两，并细锉，以东流水淘取用之。
雷公说：凡是使用海蛤，必须选取新鲜洁净的，用绢袋装好；然后用地榆、五花皮、五方草这三味药各四两，切碎，再用约重四、五斤的牡蛎，先放在平底铛中，用东西从四周固定使其稳固，然后把真珠放在上面，放好后，再放入切碎的三味药，覆盖起来，用浆水（发酵的米汤）煮三个日夜，不要让火熄灭；时间到了取出，用甘草汤淘洗干净后，在臼中捣碎成细末，用绢筛层层过滤，然后再研磨两万下才可使用。
凡是使用海蛤，一定要确保没有破损及钻透孔洞的，才可以入药。
雷公说：凡是使用海蛤，不要用生长在杂树上的螺类，这些不能入药。凡是采集时，必须选取桑树东边枝干上的。凡是采得后，去掉内核，用沸浆水浸泡淘洗七遍，让水保持沸腾状态，然后在瓷锅中熬干使用。不要随意改变炮制方法，否则就会无效。
雷公说：凡是使用真珠母（珍珠贝），先去掉上面的粗皮，用盐和向东流的流水在大瓷器中煮一个时辰（两小时）；煮好后，捞出，擦干，捣成粉末，研磨如粉状；然后，再放入锅子中，重新加入五花皮、地榆、阿胶这三味药，再用向东流的流水在瓷器中淘洗三次；等到干燥后，再研磨一万圈，才入药中使用。凡是炮制五两真珠母，取半分盐作为标准，第二次煮时，用地榆、五花皮、阿胶各十两。服用真珠母十两期间，永远不能吃山桃，否则会使人失明。
雷公说：凡是使用海蛤，不要用游波蕈骨（一种形似海蛤的虫骨）。这种虫骨真的很像海蛤，只是表面没有光泽。如果误食这种虫骨，会使人发狂奔跑想要投水，当时的人称之为“犯鬼心狂”，这并非真的有鬼神作祟，而是因为曾误食了这种虫骨。如果服用了，只用醋来解毒，立刻痊愈。将海蛤在水中淘洗三遍；擦干，细细捣碎，研磨如粉，然后才使用。凡是使用一两海蛤，用地骨皮、柏叶各二两，并切碎，用向东流的流水淘洗后使用。
Lei Gong said: When using *Hai Ge* (Clam Shell, *Meretrix meretrix*), one must select fresh and clean specimens, place them in a silk bag; then take four taels each of *Diyu* (Sanguisorbae Radix, 地榆), *Wuhua Pi* (Bark of Five-Flower Tree, 五花皮), and *Wufang Cao* (Herb of Five Directions, 五方草), cut them finely. Next, place approximately four to five jin of *Muli* (Oyster Shell, 牡蛎) in a flat-bottomed pan, secure it firmly with objects on all sides, then place the pearls (*Zhenzhu*, 真珠) on top. After placing the pearls, add the three chopped herbs, cover the vessel, and decoct with fermented rice water (*Jiangshui*, 浆水) for three days and nights without letting the fire go out. Upon completion, remove the specimen, wash it thoroughly with licorice root decoction (*Gancao Tang*, 甘草汤), pound it into fine powder in a mortar, sieve it repeatedly through a silk cloth, and grind it further twenty thousand times before use.
When using *Hai Ge*, ensure that the shells are not broken or perforated; only such intact specimens are suitable for medicinal use.
Lei Gong said: Do not use snails growing on miscellaneous trees for medicinal purposes. When harvesting, select those found on the eastern branches of mulberry trees. After harvesting, remove the inner core, soak and rinse seven times with boiling fermented rice water until the water remains boiling, then dry them in a porcelain pot before use. Do not arbitrarily alter the processing method, as this will render the medicine ineffective.
Lei Gong said: This refers to *Zhenzhumu* (Mother-of-Pearl, 真珠母). First, remove the rough outer skin. Boil it in a large porcelain vessel with salt and flowing water from east to west for one *shi* (two hours). Remove, wipe dry, pound into powder, and grind until fine. Then, return it to the pot, add *Wuhua Pi*, *Diyu*, and *Ejiao* (Donkey-hide Gelatin, 阿胶), and rinse three times with flowing water from east to west in a porcelain vessel. Once dry, grind it ten thousand times more before incorporating it into prescriptions. For every five taels processed, use half a tael of salt as a standard for the second boiling; for this step, use ten taels each of *Diyu*, *Wuhua Pi*, and *Ejiao*. While taking ten taels of *Zhenzhumu*, one must never consume wild peaches (*Shantao*, 山桃), as this may cause blindness.
Lei Gong said: Do not use *Youbo Xun Gu* (Bone of the Swimming Mushroom Fungus, 游波蕈骨). This insect bone resembles *Hai Ge* closely but lacks surface luster. If mistakenly ingested, it causes madness characterized by running wildly and attempting to jump into water; people at the time called this "ghost-induced mania," but it is actually due to the toxicity of this insect bone. If ingested, antidote with vinegar for immediate recovery. Wash *Hai Ge* three times in water, wipe dry, crush finely, and grind into powder before use. For every one tael of *Hai Ge*, use two taels each of *Digupi* (Cortex Lycii, 地骨皮) and *Boye* (Cupressi Cacumen, 柏叶), cut finely, and rinse with flowing water from east to west before use.