Dear WW: consider the problem of trying to scape barnacles off wood without removing
more wood than barnacle. I think my idea of the holystone would make more sense.
Incidentally, "holystone" got its name because you had to get down on your knees to
use it. I told you about having to climb a large safety cable on the side of the troopship,
and encountering both deep slimy algae and very sharp barnacles. If you've forgotten,
I'll email you the yarn again on request.