In the Charles Neider edition of Twain' short stories (1957) there are some letters and an editorial inserted in the middle of "A Double-Barreled Detective Story." I know these insertions did not appear in Twain's first publication; they were added later. I am intrigued by the way they are inserted in Neider's edition -- they really disturb the flow of the narrative. Finally, my question: when were these insertions added to the text? did they really appear in the Springfield _Republican_ in 1902 as cited in the Neider edition? who was responsible for first inserting them? Any comments on this matter are greatly appreciated. Thanks. Albert Sears