[18a - 48 lines; 18b - 50 lines]
We recommend using the textual changes suggested by the Bach and the marginal notes of the Vilna Shas. This section is devoted to any OTHER important corrections that Acharonim have pointed out in the Gemara, Rashi and Tosfos.
 Gemara 18a [line 37]:
"Banu l'Machlokes Rebbi Eliezer va'Chachamim" בנו למחלוקת רבי אליעזר וחכמים
The printed edition is correct; this is not referring to Rebbi Elazar רבי אלעזר who was mentioned above (see Girsa Section to Kerisus 17:8)
 Rashi 18a DH va'Amai ד"ה ואמאי:
The printed text of Rashi seems more correct than the emendations of the Gilyon and Shitah Mekubetzes
 Rashi 18b DH Hainu d'Tali l'Asham ד"ה היינו דתלי לאשם:
The words "Ela l'Reish Lakish, Chatas b'Asham Iba'i Lei l'Misnei" אלא לריש לקיש חטאת באשם איבעי ליה למתניה are the beginning of a new Dibur
1)[line 32]השוחט בחוץHA'SHOCHET B'CHUTZ (SHECHUTEI CHUTZ)
2)[line 32]השוחט אשם תלוי בחוץ רבי מאיר מחייבHA'SHOCHET ASHAM TALUY B'CHUTZ, REBBI MEIR MECHAYEV- that is, Rebbi Meir requires that he bring another Asham Taluy, to atone for the sin of slaughtering an animal that is Safek Kodesh outside of the Azarah of the Beis ha'Mikdash
3)[line 47]קבעת את הראשונה בחטאתKAVATA ES HA'RISHONAH B'CHATAS- you have made it look as though the first person sinned for certain (and not just mi'Safek)
4)[last line]חולין לעזרהCHULIN LA'AZARAH
It is forbidden to slaughter animals in the Azarah other than animals sanctified to be Korbanos, as we learn from the verse, "If the place chosen by HaSh-m is far [from where you are]... you may slaughter and eat meat to your heart's content..." (Devarim 12:21). Chazal learn from this verse that we may slaughter Chulin only outside of the Azarah of the Beis ha'Mikdash. If an unsanctified animal is slaughtered inside the Azarah, it becomes Asur b'Hana'ah.
5)[line 3]הוא אכלחלבH U ACHAL CHELEV- I ate Chelev (the third person pronoun was used, because he did not want to refer to himself as a sinner)
6)[line 12]ידיעות ספק מחלקותYEDI'OS SAFEK MECHALKOS
(a)A He'elem is a period of forgetfulness. A Yedi'ah is the knowledge that a person sinned. If a person sins repeatedly (for example, if he ate two or more k'Zeisim of Chelev) in one He'elem, and afterwards finds out that he has sinned, he only has to bring one Korban Chatas to atone for his sins. However, if a person sins and then learns of his sin and subsequently forgets, and transgresses again, he has to bring a separate Korban Chatas for each sin. Similarly, if a person commits different types of sins in one He'elem, he has to bring a separate Korban Chatas for each sin.
(b)Our Gemara deals with Yedi'os Safek, the knowledge that there is a possibility that a person sinned. The Tana'im argue as to whether Yedi'os Safek interrupt a person's transgressions such that he needs to bring multiple Ashamos Taluy or not.
7)[line 15]אשם תלויASHAM TALUY
8)[line 30]דילמא כוליה יומא מאורתאDILMA KULEI YOMA ME'URTA- perhaps the atonement of the entire day only takes place on the night of Yom ha'Kipurim (and his subsequent sins will not receive atonement)
9)[line 49]בשני ונכנס חייבB'SHENI V'NICHNAS, CHAYAV - [and he then walked] on the second [path,] and entered [the Mikdash;] he is liable (TUM'AS MIKDASH V'KODASHAV)
(a)It is forbidden for a person to enter the Mikdash (see Background to Makos 12:33 for a discussion of the boundaries of the various areas in the Mikdash) if he touched an Av ha'Tum'ah (Bamidbar 5:2). Regarding a person who becomes Tamei the verse states, "b'Chol Kodesh Lo Siga" - "... she (a woman after childbirth) shall touch no consecrated thing" (Vayikra 12:4), from which the Gemara (Yevamos 75a, Makos 14b) derives that it is forbidden for a person who is Tamei to eat Kodshim. If a person who is Tamei eats the blood of Kodshim, he does not transgress this prohibition.
(b)One who transgresses these prohibitions b'Shogeg (unintentionally) becomes obligated to bring a Korban Oleh v'Yored (see Background to Kerisus 2:10). If he transgresses them b'Mezid (intentionally) and witnesses saw him and he was warned (Hasra'ah) not to transgress, he is punished with Malkus (lashes). If he was not warned, he is punished with Kares (Vayikra 12:4, 22:3-4, Bamidbar 5:3, 19:20) (SEFER HA'CHINUCH Mitzvah #167).