Maseches Eruvin Perek 5: כיצד מעברין
Daf 52 - When One Leaves the Techum Rav Yosef Jacobowitz; Mechaber Sefer Gevul Rishonim Daf 53 - Fundementals of Techum Shabbos Rav Yosef Jacobowitz; Mechaber Sefer Gevul Rishonim Daf 54 - Thinking In Learning Rav Yosef Jacobowitz;…