▁and ▁st ip ul ates ▁also ▁how ▁far ▁the ▁pur ity ▁of ▁anything ▁is ▁affected ▁by ▁his ▁touch . ▁ ▁Cont ents ▁In ▁the ▁M ish nah , ▁the ▁tract ate ▁compr ises ▁four ▁chap ters , ▁containing ▁ 2 6 ▁paragraph s ▁in ▁all : ▁▁ ▁Chapter ▁ 1 : ▁La ws ▁concerning ▁bread ▁and ▁other ▁things ▁which ▁are ▁of ▁such ▁a ▁form ▁that ▁if ▁a ▁te v ul ▁y om ▁or ▁any ▁other ▁uncle ann ess ▁touch es ▁part ▁of ▁them ▁the ▁whole ▁is ▁rendered ▁imp ure . ▁▁ ▁Chapter ▁ 2 : ▁Conc ern ing ▁liqu ids ▁touched ▁by ▁a ▁te v ul ▁y om ; ▁when ▁such ▁contact ▁rend ers ▁the ▁whole ▁un fit , ▁and ▁when ▁it ▁affect s ▁only ▁the ▁part ▁touched . ▁▁ ▁Chapter ▁ 3 : ▁Cont inu ation ▁of ▁chapter ▁ 2 : ▁laws ▁concerning ▁liqu ids ▁easily ▁rendered ▁imp ure . ▁▁ ▁Chapter ▁ 4 : ▁La ws ▁concerning ▁ut ens ils ▁touched ▁by ▁a ▁te v ul ▁y om ; ▁enumer ation ▁of ▁hal akh ic ▁rules ▁which ▁have ▁under g one ▁changes ▁in ▁the ▁course ▁of ▁time ; ▁of ▁the ▁hal akh ic ▁reg ulations ▁which ▁R . ▁Josh ua ▁declared ▁were ▁introduced ▁by ▁the ▁s ages ▁(" so fer im "), ▁and ▁which ▁he ▁was ▁unable ▁to ▁explain . ▁ ▁In ▁the ▁T ose ft a , ▁the ▁tract ate ▁is ▁divided ▁into ▁two ▁chap ters . ▁ ▁References <0x0A> </s> ▁is ▁a ▁met ro ▁station ▁on ▁the ▁Os aka