Lighting Torches on Mountain Tops to signal a New Moon which is Seen on Time: Pesachim 2b; Rosh HaShanah 22b
On Which Night the Torches were lit: Pesachim 2b; Rosh HaShanah 22b-23a
For which type of month (29 or 30 day) the torches were lit: Rosh HaShanah 22b-23a
How the Torches were lit and displayed: Rosh HaShanah 22b, 23a-b
The attempt of the Kutim to light fake torches: Rosh HaShanah 22b
Where the torches were lit, outside Israel: Rosh HaShanah 23b
Messengers
The Messengers are sent out to announce the Court's decision for the date beginning the months of Nisan, Av, Elul, Tishrei, Kislev, Adar, Iyyar: Rosh HaShanah 18a