Banoi Herald Excerpt 36: After first talking with Dr. West, as you leave his room you will see a bearded scientist having a conversation with his colleague. Take the quest to help him and after dealing with zombies go into the first room right of the door you entered. The excerpt will be on one of the desks.
Banoi Herald Excerpt 37: After talking to Will in the Laboratory, enter the nearest bathroom and you will find it in a stall.
Banoi Herald Excerpt 38: On the same floor as Tape Recorder 11 and 12, in a room directly in front of a double doored room that contains 3-4 Walkers. The room with the fact has a single door, and contains an Infected. The desk closest to the door has the Excerpt.