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This refers to the second generation of silkworm moths, implying the rapid reproduction cycle of original and reared silkworms. This has been detailed in the entry for *Bai Jiangcan* (White Silkworm). The feces can be used to feed cattle as a substitute for grain. Additionally, mix five dou of silkworm feces with three sheng of strong wine, steam them hot in a steamer basket, spread them on an oil cloth in a warm room, and have patients suffering from wind-cold qi obstruction or recent onset of paralysis lie on the affected side. Apply warmth, cover thickly, and continue until sweating occurs. For those with deficiency constitutions, attendants must remain nearby to prevent fainting due to excessive heat. Ensure the head and face are exposed and not covered; if not fully recovered, repeat the treatment after an interval.

Used to treat women's blood-wind syndrome; this refers to the skin shed by the silkworm upon waking from dormancy. The paper-like substance left behind is called "Can Lian" (Silkworm Link), which can also be burned to ash and used to treat women's metrorrhagia and leukorrhea.

Freshly dissected and sun-dried, take a small amount, lightly roast over fire until oil exudes, then apply to vitiligo patches and rub with fingers; the color will immediately change. Repeat this process five to seven times to achieve a cure, ensuring gentle friction on the white patches initially.

Shark and manta ray skins are of similar grade, though their shapes differ slightly. Nowadays, people use their skins to decorate saddles and sword scabbards. Other details remain as recorded in classics.

The pufferfish (*Hetun*), ancient texts state it is "non-toxic." In reality, this fish possesses significant toxicity. Although its taste is exquisite, improper preparation can lead to death upon consumption; thus, caution is imperative. It is better not to eat raw, fleshy specimens. Su Zimei said: "At this time, the pufferfish is more expensive than fish and shrimp." This was merely satirical poetry and should not be fully trusted. However, this fish becomes angry easily; when touched, it inflates its belly and floats to the surface. Fishermen can capture it by prodding it. Olive juice and reed root juice can detoxify it.

*Zi Bei* (Purple Shell) is about two to three cun in diameter, with a deep purple back marked with black spots. *Shennong Bencao Jing* records burning it to retain its properties for use in eye drop preparations.

*Bai Lu* (Sea Bass) benefits the liver and kidneys, tonifies the five zang organs, and harmonizes the stomach and intestines. Its consumption is beneficial to humans and rarely induces disease. No wonder Zhang Han missed it.

Toads are often found under ditches near residences; they have large bellies and are the largest among amphibians. They emerge to feed during rainy weather or at dusk/night. Collect the white fluid from between their eyebrows, known as "Chan Su" (Toad Venom). Wrap the brow area with an oil cloth and squeeze to extract the venom onto the cloth for medicinal use. If someone suffers from bleeding gums, dip a piece of paper in dry Chan Su and press it against the bleeding site to stop the flow instantly. Some people collect dead toads with three legs to deceive others; however, soaking them in water for half a day reveals the fraud, as naturally occurring three-legged toads do not exist.