The Nuttall Encyclopedia
An animal of the weasel tribe, worshipped in Egypt from its destroying the eggs of noxious reptiles, and of the crocodile in particular.
Wood, James, ed. Entry for 'Ichneumon'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/i/ichneumon.html. Frederick Warne & Co Ltd. London. 1900.