Halacha bais and gimel covered tonight. Discussion of what constitutes a break in a field when there is a body of running water. 

Reb Yehuda may or may not argue on First Mishnah - see Rambam and Kesef Mishnah with Tosfos Yom Tov on why Rambam paskened like Reb Yehuda.

Halacha gimel discusses orchards that are not impacted by the breaks of the first Mishnah and require a fence of ten tefachim to divide the orchard for Peah purposes. Exceptions are Carob and Olive trees for the reasons we quoted.