The Rev. Thomas Daffy, who invented the Elixir Salutis with which his name has been associated for about 250 years, was rector of Redmile in Leicestershire from 1660 to 1680. He had been appointed rector of Harby in the same county in Cromwell’s time, but the Countess of Rutland, who presumably “sat under” him, was a lady of evangelical ideas, and the Rev. Thomas was apparently of a “high” tendency, for according to Nichols’s “History of Leicestershire,” “he was removed from that better living to this worse one to satisfy the spleen of the Countess of Rutland, a puritanical lady who had conceived a feeling against him for being a man of other principles.” Just when he invented his elixir does not appear, but it is to be hoped that the profits from it made up for the sacrifice he had to make in consequence of his “other principles.” It is clear from the references to the medicine which are found in general literature and from the fact that it was imitated in the Pharmacopœia (under the formula for Tinctura Sennæ Co.) that it acquired considerable popularity. The following advertisement from the _Post Boy_ of January 1, 1707, tells most of what is known about the elixir:-- Daffye’s famous Elixir Salutis, prepared by Catherine Daffye, daughter of Mr. Thomas Daffye, late rector of Redmile in the vale of Belvoir, who imparted it to his kinsman, Mr. Anthony Daffye, who published the same to the benefit of the community and to his own advantage. The original receipt is now in my possession left to me by my father. My own brother, Mr. Daniel Daffye, apothecary in Nottingham, made this Elixir from the said receipt and sold it there during his life. Those who know it will believe what I declare; and those who do not may be convinced that I am no counterfeit by the colour, taste, smell, and operation of my Elixir. To be had at the Hand and Pen, Maiden Lane, Covent Garden. Catherine Daffy was not a clever advertiser, for her announcement seems calculated to assist Anthony Daffy’s preparation as much as her own, and it is likely that this was not her intention. Such little evidence as exists goes to show that it was Anthony’s and not Catherine’s Elixir that maintained the fame which had been won.