Tohorot
Tohorot (Hebrew: טָהֳרוֹת, literally "Purities") is the sixth and last order of the Mishnah (also of the Tosefta and Talmud). This order deals with the clean/unclean distinction and family purity. This is the longest of the orders in the Mishnah. There are 12 tractates:
Keilim: (כלים "Vessels"); deals with a large array of various utensils and how they fare in terms of purity. 30 chapters, the longest in the Mishnah.
Oholot: (אוהלות "Tents"); deals with the uncleanness from a corpse and its peculiar property of defing people or objects either by the latter "tenting" over the corpse, or by the corpse "tenting" over them, or by the presence of both corpse and person or object under the same roof or tent.
Nega'im: (נגעים "Plagues"); deals with the laws of the tzaraath.
Parah: (פרה "Cow"); deals largely with the laws of the Red Heifer (Para Adumah).
Tohorot: (טהרות "Purities"); deals with miscellaneous laws of purity, especially the actual mechanics of contracting impurity and the laws of the impurity of food.
