Here's an interesting contradiction: Rule 7-2-5 says when a fumble comes to rest and no one attempts to secure it, it is declared dead and belongs to the fumbling team at the dead ball spot, and 8-2-1-c says when a fumble is awarded in the end zone it's a TD. However, the replay casebook, play 125 says: " Fumble at a goal line: First and goal on the B-5. A22 runs to B’s goal line, loses the ball prior to it breaking the plane of the goal line, and the officials rule touchdown. The ball comes to rest in the end zone with no player attempting to recover it. Ruling: Reviewable play, regarding whether A22 scored a touchdown before he lost the ball. Reverse to no score, A 2-Goal on B-1. If the ball becomes dead in the end zone with no team possessing it, the ball is placed at the spot of the fumble. If the ball is dead in the field of play, the ball is placed at that spot (Rule 12-3-1-a and 12-3-3-d)."