The Weapon Ointment.--Among the most famous nostrums, and a striking example of the great role played in therapeutics by mental influence and coincidence, is the Unguentum Armariam or Weapon Ointment. This famous remedy would cure any wound made by a weapon, if it could only be employed before the fatal effects were absolutely manifest. There was an abundance of evidence that it stopped the pain, checked the bleeding and initiated the restoration of the patient to health. We know the remedy not from traditions of its use among the uneducated, but from descriptions that we have by men who were among the best educated of their time, and that by no means an era of dullards. The story of this infallible remedy is all the more surprising because it was not applied to the wound itself, nor indeed to the sufferer at all, but _to the weapon which inflicted the wound_. Nay, it was well authenticated that, where the weapon could not be secured for inunction, if the ointment were applied to a wooden model of the weapon, the cure followed with almost, though, it was confessed by some, not quite so much assurance as in the fortunate case of the weapon being available. The story has been so well told by Oliver Wendell Holmes in his "Medical Essays" [Footnote 9] that it seems best to retell it in abstracts from his "Homeopathy and Its Kindred Delusions." He says: [Footnote 9: Houghton Mifflin Co., Boston.] Fabricius Hildanus, whose name is familiar to every surgical scholar, and Lord Bacon, who frequently dipped a little into medicine, are my principal authorities for the few circumstances I shall mention regarding it. The Weapon Ointment was a preparation used for the healing of wounds, but instead of its being applied to them, the injured part was washed and bandaged, and the weapon with which the wound was inflicted was carefully anointed with the unguent. Empirics, ignorant barbers, and men of that sort are said to have especially employed it. _Still there was not wanting some among the more respectable members of the medical profession who supported its claims_. [Italics ours.] The composition of this ointment was complicated, in the different formulas given by different authorities; but some substances addressed to the imagination, rather than the wound or weapon, entered into all. Such were portions of mummy, of human blood and of moss from the skull of a thief hung in chains. Hildanus was a wise and learned man, one of the best surgeons of his time. He was fully aware that a part of the real secret of the Unguentum Armarium consisted in the washing and bandaging the wound and then letting it alone. But he could not resist the solemn assertions respecting its efficacy; he gave way before the outcry of facts (!), and therefore, instead of denying all their pretensions, he admitted and tried to account for them upon supernatural grounds. Holmes says further: