Halacha 2
A continued discussion of the laws regards the roots of a tree.
Rav Bar Hayim explains the pesuk כאפיקים בנגב (from shir haMaalot) through a story from his time in the army.
The Jews of the Yerushalmi spoke with briefer words
The Yerushalmi tries a few times to solve a question, but it sooner to leave it unanswered than the Bavli would.
Who is the Rashash? He attempts to answer the final question of the gemara.
Halacha 3
How do these laws extrapolate to other trees?
How were roofs build in the time of the mishna?