David MacRitchie, Fians, Fairies and Picts
“ It seems to me beyond question that a people living this underground life must have differed very distinctly from ourselves in the matter of vision; and to them the brightness of noonday must have been blinding. This physical fact—if it be a fact—would explain much that is otherwise strange and incredible in the traditions relating to the Picts—or Pechts, as they were formerly called in Scotland. However, it is sufficient for my present purpose to note that this peculiarity associates, and indeed identifies, the Picts with the dwarfs or fairies of tradition. ”
