"If a horse or other neat be elf-shot take sorrel-seed or Scotch wax, let a man sing twelve Masses over it and put holy water on the horse or on whatsoever neat it be; have the worts always with thee. For the same take the eye of a broken needle, give the horse a prick with it, no harm shall come."--_Leech Book of Bald_, I. 88. Another prescription for an elf-shot horse runs thus:-- "If a horse be elf-shot, then take the knife of which the haft is the horn of a fallow ox and on which are three brass nails, then write upon the horse's forehead Christ's mark and on each of the limbs which thou mayst feel at: then take the left ear, prick a hole in it in silence, this thou shalt do; then strike the horse on the back, then will it be whole.--And write upon the handle of the knife these words-- "Benedicite omnia opera Domini dominum. "Be the elf what it may, this is mighty for him to amend."--_Leech Book of Bald_, I. 65.[15] Closely allied to the doctrine of the elf-shot is that of "flying venom." It is, of course, possible to regard the phrase as the graphic Anglo-Saxon way of describing infectious diseases; but the various synonymous phrases, "the on-flying things," "the loathed things that rove through the land," suggest something of more malignant activity. As a recent leading article in _The Times_ shows, we are as a matter of fact not much wiser than our Saxon ancestors as to the origin of an epidemic such as influenza.[16] Indeed, to talk of "catching" a cold or any infectious disease would have struck an Anglo-Saxon as ludicrous, mankind being rather the victims of "flying venom." In the alliterative lay in the _Lacnunga_, part of which is given below, the wind is described as blowing these venoms, which produced disease in the bodies on which they lighted, their evil effects being subsequently blown away by the magician's song and the efficacy of salt and water and herbs. This is generally supposed to be in its origin a heathen lay of great antiquity preserved down to Christian times, when allusions to the new religion were inserted. It is written in the Wessex dialect and is believed to be of the tenth century, but it is undoubtedly a reminiscence of some far older lay. The lay or charm is in praise of nine sacred herbs (one a tree)--mugwort, waybroad (plantain), stime (watercress), atterlothe (?), maythen (camomile), wergulu (nettle), crab apple, chervil and fennel.