The House of Silk the possibilities of an Atlantic or a Niagara? Can he astonish us? Can he thrill us? Are there "the rapid deductions, as swift as intuitions, and yet always founded on a logical basis" that we yearn for? Emphatically, yes. In chapter one there is some mention of C. Auguste Dupin, a character developed by author Edgar Allan Poe, and his ability to make astounding deductions based on visible emotions reflected through the physical medium. Holmes demonstrates this by uncovering Watson's anxiety and the source thereof. This mention of Dupin is in itself a reference to a reference made by Conan
Louis Ellies Dupin Optatus of Mileve (Paris, 1700), the Psalms with annotations (1691), and published "Notes sur le Pentateuque" (1701), an abridgment of "L'histoire de l'Eglise" (1712), "L'histoire profane" (1714–1716), "L'histoire d'Apollonius de Tyane" (1705, under the name of M. de Clairac), a "Traité de la puissance ecclésiastique et temporelle", a commentary on the Four Articles of the clergy of France (1707), the "Bibliothèque universelle des historiens" (1716), numerous works and articles on theology, reprints of former works, etc. Dupin was no pedant. Louis Ellies Dupin Louis Ellies du Pin, or Dupin (17 June 1657 – 6 June 1719) was a French ecclesiastical