Lamarca, the 1967 edition of the Harrowsmith Grade Six Primer for Outdoor Living, chapter 8 - 30 days in the Barrens and all I had was a Pair of Tweezers, says that the moss is always found on the underside of the moose, that being closest to any rolling stones. Unfortuneately for the formula it gives for the length of string we need to know the exact birthdate of the moose.Sophocleese