Rosh HaShanah 23a and Rosh HaShanah 23b, a digression into the kinds of wood that qualify as erez, because those were the poles used for the bonfires to announce the New Moon, with ideas about Jerusalem being replanted and regrown, and then more on how the witnesses were gathered before and after they testified, where they were allowed to travel if they came from far on Shabbat, and what is obviously erroneous or false testimony about the New Moon.
