John Gregorson Campbell,
Witchcraft & Second Sight in the Highlands & Islands of Scotland
“ Iron, or preferably steel, in any form is a protection, though it is not obvious how or why, against the fairies,—an iron ring on the point of a staff is as good as a sword, but evil spirits are subdued by it only when made into a lethal weapon.In the struggle the ghost is in the hands of its opponent, soft as a bag of wool or impalpable as air. At every tussle, therefore, the unfortunate man is thrown down and injured.In the presence of an evil spirit, a dog defends its master, or crouches in terror about his feet, but a bitch jumps at his throat, and if it can will tear him. ”
