雷公云∶黑虎身小黑，觜脚小斑。
若使黑虎，即和头、尾、皮、爪，并阴干，酒浸三日，漉出，焙干用。
雷公云∶凡使，勿用青、黄、苍色者，要用白如银色者。
凡欲使，先于屋下以地掘一坑，可深一尺二寸，按蛇皮于中，一宿，至卯时出，用醋浸
一时，于火上炙干用之。
雷公云∶凡使，勿用五色者，兼大身、上有刺毛生者；并薄小者。以上并不堪用。凡欲
用，要在屋西面有网、身小尻大、腹内有苍黄脓者，真也。
凡用，去头、足了，研如膏，投入药中用。
雷公云∶凡使，收得后，用糯米水浸一宿，至明漉出，以无灰酒浸一日，至夜漉出，焙
令干后，细切。取蜀椒、并糯米及切了蚯蚓三件同熬之，待糯米熟，去米、椒了，拣净用之
凡修事二两，使米一分、椒一分为准。
雷公云∶凡使，勿用千足虫，真似，只是头上有白肉，面并觜尖。若误用，并把着，腥
臭气入顶，致死。
夫使蜈蚣，先以蜈蚣、木末，不然用柳 末，于土器中炒，令木末焦黑后，去木末了，
用竹刀刮去足、甲了用。
雷公云∶凡使，须认雄、雌。若雄为蛤，皮粗口大，身小尾粗；雌为蚧，口尖，身大尾
小。男服雌，女服雄。
凡修事服之，去甲上、尾上并腹上肉毛。毒在眼。如斯修事了，用酒浸，才干，用纸两
重，于火上缓隔焙纸炙，待两重纸干，焦透后，去纸，取蛤蚧于瓷器中盛，于东舍角畔悬一
宿，取用，力可十倍。
勿伤尾，效在尾也。
Lei Gong said: The Heihu (Bufo melanostictus, black tiger toad) has a small black body with small spots on its beak and feet.
If one wishes to use the Heihu, combine the head, tail, skin, and claws, dry them in the shade, soak them in wine for three days, strain them out, bake them until dry, and then use them.
Lei Gong said: In general usage, do not use those that are green, yellow, or grayish; only use those that are white like silver.
To prepare it, first dig a pit about one chi and two cun deep under the eaves of a house, place snake skin at the bottom, leave it overnight, and retrieve it at Mao hour (5-7 AM). Soak it in vinegar for one shi (two hours), roast it over fire until dry, and then use it.
Lei Gong said: In general usage, do not use those that are multicolored, nor those that are large with bristles growing on their bodies, nor those that are thin and small. None of these above are suitable for use. To identify the true specimen, look for those found near nets on the west side of the house, with a small body, large hindquarters, and containing grayish-yellow pus inside the abdomen.
When using, remove the head and feet, grind into a paste, and add to the medicinal mixture.
Lei Gong said: After harvesting, soak the earthworms (Qiu Yin) in rice water overnight. Strain them out the next morning, soak them in non-ashy wine for one day, strain them out at night, bake until dry, and cut finely. Take Sichuan pepper (Shu Jiao), glutinous rice, and the cut earthworms, and simmer them together. When the glutinous rice is cooked, remove the rice and pepper, select the clean worms, and use them. For every two liang of preparation, use one part rice and one part pepper as the standard.
Lei Gong said: Do not use the thousand-legged worm (Peripatus, mahu chong), which resembles the centipede but has white flesh on its head and a pointed face and beak. If mistakenly used and held, its foul odor entering the top of the head can cause death.
To process the centipede (Wu Gong), stir-fry it with wood dust or willow powder in an earthenware vessel until the wood dust turns charred black. Remove the wood dust, scrape off the legs and claws with a bamboo knife, and then use it.
Lei Gong said: One must distinguish between male and female. The male is called "Ge," characterized by rough skin, a large mouth, a small body, and a thick tail. The female is called "Jie," characterized by a pointed mouth, a large body, and a small tail. Men should consume the female, and women should consume the male.
After processing, remove the fleshy hairs from the shell, tail, and abdomen. The toxicity resides in the eyes. After such processing, soak in wine, dry, wrap in two layers of paper, and slowly roast over fire through the paper. When the two layers of paper are dry and thoroughly scorched, remove the paper, store the Gejie in a porcelain vessel, hang it in the corner of the eastern room overnight, and when used, its efficacy will be ten times greater.
Do not damage the tail, as the efficacy lies in the tail.