The eight sheratzim mentioned in the Torah, one who traps them and one who bruises them is liable. But other vermin and crawling things, one who bruises them is exempt; one who traps them because he needs them is liable, if he does not need them, he is exempt. Beasts and birds that are in one’s domain, one who traps them is exempt, but one who bruises them is liable.

We may not make pickling brine on the Sabbath, but one may make salt water and dip his bread in it, or add it to cooked food. Said R’ Yose: But is this not pickling brine whether it is a large or a small quantity? [Rather] these are the permissible [ways to make] salt water: One first adds oil to the water or to the salt.

We may not eat Greek hyssop on the Sabbath, because it is not food for healthy people; but one may eat pennyroyal, or drink knotgrass water. A person may eat any foods for healing; and he may drink any beverages, except for the water of palm trees or a potion of roots, because they are [cures] for jaundice. However, one may drink the water of palm trees to quench his thirst, and he may anoint himself with root oil [if it is] not for healing.

One whose teeth pain him may not sip vinegar through them, but he may dip [his bread] in vinegar in his usual manner, and if he is [thus] cured, he is cured. One whose loins pain him may not anoint himself with wine or vinegar. He may, however, anoint himself with oil, but not [with] rose oil. Princes may rub rose oil on their wounds, for such is their custom to anoint [themselves] on weekdays. R’ Shimon says: All Israel are princes.