Isfunj va hajarukh - a sponge and its stone

Essence.
This is a marine body, loose and loose, like felt. It is said that the sponge is an animal called sea wool, which moves along with the algae that adheres to it.

Choice.
Fresh sponges are stronger and dry better due to the strength and nature of the sea.

Nature.
Hot in the first degree, dry in the second. Sponge stone is similar in nature to sponge, but less hot.

Actions and properties.
Sponges dry out a lot, especially young ones, if you burn them with zift. Therefore, the ash of the sponges prevents bleeding during an incision or puncture. The sponge is set on fire on a sore spot and it cauterizes, at the same time being a hemostatic agent. Wicks are also made from it, which are inserted into the mouths of blood vessels, and the wick stops bleeding. The sponge stones are cut without causing heat, dried and cleaned.

Tumors and acne.
The sponge dries out mucous tumors.

 Wounds and ulcers.
A sponge is dipped in vinegar and placed on wounds to speed up healing. It is boiled in honey and heals old ulcers. A sponge, dry or moistened with water or wine, is also placed on wounds, and it dries out old moisture and cleanses the sore spot.

Respiratory and chest organs.
When the sponge is burned with zift, it is suitable for the treatment of hemoptysis.

Eruption organs.
The stone, which is in the sponge, according to the general opinion of doctors, except Galen, crushes stones in the bladder; Galen considers it impossible that the power of this stone reaches the bladder, although he has no doubt that it penetrates to the kidney stones.