and one Sherlock Holmes story ("The Adventure of the Persecuted Painter"). Most recently, PS Publishing reissued all of Copper's Pons stories in 6 volumes, adding a 7th volume entitled The Solar Pons Companion, which contains related non-fiction and assorted materials. Omnibus editions Copper also edited Derleth's Pons stories for Arkham House under the title The Solar Pons Omnibus. In addition to his extensive edits, in which Copper "rather controversially corrected many errors and adjusted many Americanisms," he arranged the stories in order of their internal chronology, rather than by release date. A later omnibus, The Original Text Solar Pons Omnibus Edition, was issued by Mycroft & Moran in 2000, reverting the stories to Derleth's original versions, and printing them in order of publication. Solar Pons societies and journals A society, the Praed Street Irregulars (PSI), was dedicated to Solar Pons. The Irregulars were founded by Luther Norris with assistance from Peter Ruber in 1966 in the style of the better-known Baker Street Irregulars. The PSI produced a newsletter, later a journal, the Pontine Dossier, published by The Pontine Press between 1967 and 1977 for 15 issues. A branch, The London Solar Pons Society, was established in England headed by Roger Johnson. Other branches were established in other areas. Though it is not formally associated with the Praed Street Irregulars, publication of The Solar Pons Gazette began in 2006 as an online journal. In more recent times, Belanger Books has revived The Pontine Dossier as The Pontine Dossier: Millennium Edition, a print journal, with three annual numbers published to date. In popular culture The Twin Peaks character Cyril Pons is named after Solar Pons. David Marcum's book The Papers of Sherlock Holmes, Volume II includes a story titled "The Adventure of the Other Brother," in which Holmes' nephew Siger takes the name Solar Pons in order to make his own name, instead of relying on that of his famous uncle. List of Solar Pons books By August Derleth "In Re: Sherlock Holmes": The Adventures of Solar Pons a.k.a. Regarding Sherlock Holmes: The Adventures of Solar Pons (in the UK: The Adventures of Solar Pons) (1945) The Memoirs of Solar Pons (1951) Three Problems for Solar Pons (1952) – the contents of this book later appeared in The Return of Solar Pons The Return of Solar Pons (1958) The Reminiscences of Solar Pons (1961) The Casebook of Solar Pons (1965) A Praed