Ecolocation

“Yes, research is important for any investigation. But you’ll never find out about the world if you stay trapped within the walls of a cubicle in some room in a big old library. You've got to break through those walls and see what's on the other side!”
        Gulielmus Baskervilli

1-2 3-4-5-6-7 8-9 10-11-12-13-14-15-16 17-18, “19-20-21”
22-23-24-25-26-27, 28-29 30-31-32-33-34-35-36 37-38 39 40-41
42-43-44-45-46 47-48 49 50-51 52 53-54-55-56-57-58-59