George Catlin, Illustrations of the manners, customs… (1876)
“ The scalping is an operation not calculated of itself to take life, as it only removes the skin, without injuring the bone of the head; and necessarily, to be a genuine scalp, must contain and show the crown or centre of the head; that part of the skin which lies directly over what the phrenologists call “self-esteem,” where the hair divides and radiates from the centre ”
