Menahot 56: Upon the Head of the Goat

Essential component elements of offering sacrifices on the altar - including the laying on of hands, on the head of the goat (for example). Also, the concept of the sacrifice of Nachshon - namely, the "prince" of the tribe of Yehudah, representative of all of the tribute by the tribes in the wilderness (Parshat Naso in the Torah), in contrast to the sacrifices as commanded for the generations to implement. Plus, being liable for each of the component parts of kneading, shaping, and baking the grain-offerings, as delineated in the mishnah on the previous page (and the accompanying beraita). Also, bloodletting that might save an animal's life, with protections in place to prevent kohanim from engineering blemishes for non-holy meat. (5 opinions in total)