Comparison of the laws of plantation on a boat to the laws on plantation in a perforated pot raised off the ground – in terms of tithes and shmita. Different opinions relating to the boundaries of Israel in the Mediterranean Sea. Is “Suria” (Northern Syria of today) considered Israel or not? For certain issues it is considered like Israel and for others not. One wanting to purchase land in Israel from a non-Jew is allowed to have a non-Jew do it for him on Shabbat due to the importance of a mitzvah. It is unclear if this related only to writing the contract or also to the actual purchase.