Poems and Stories (Boston: James R. Osgood and Company, 1881) a posthumous collection of 43 poems and 13 stories, edited by William Winter, with biographical sketches by Winter, Thomas E. Davis, Frank Wood, George Arnold, Stephen Fiske, and Louis H. Stephens.
Subsequent collections reissued the stories alone:
The Diamond Lens &c. (1885); the 13 stories.
What Was It? &c (1889); 8 stories.
Collected Stories (1925); 8 stories.
The Diamond Lens &c. (1932); 7 stories.
The Fantastic Tales (London: John Calder, 1977); 7 stories.
The Supernatural Tales of Fitz-James O'Brien, ed. Jessica Amanda Salmonson (New York: Doubleday, 1988), with introduction and notes, which restored texts to original magazine versions, in two volumes:
Macabre Tales
Dream Stories and Fantasies
The Short Stories of O'Brien With original places of publication
An Arabian Nightmare [ascribed]
Household Words, Nov 8, 1851
The Bohemian
Harper's, July 1855
The Child That Loved a Grave [anon.]
Harper's, Apr 1861
The Comet and I
Harper's Weekly, May 23-June 27, 1857
The Crystal Bell
Harper's, Dec 1856
A Day Dream
Harper's Weekly, Feb 21, 1857
A Dead Secret
Harper's, Nov. 1853
The Diamond Lens
Atlantic Monthly, Jan 1858
The Dragon Fang Possessed by the Conjuror Piou-Lu
Harper's, Mar 1856
Duke Humphrey's Dinner
From Hand to Mouth
New York Picayune, Mar 27-May 15, 1858
The Golden Ingot (1858)
How I Overcame My Gravity
Harper's, May 1864
Jubal, The Ringer
The Knickerbocker, Aug. 1858
The King of Nodland and His Dwarf (novella)
American Whig Review, Dec 1852 *
A Legend of Barlagh Cave ("Phantom Light," installment five)
The Home Companion,
Jan 31, 1852
The Lost Room
Harper's, Sept 1858
The Man Without a Shadow: A New Version
The Lantern, Sept 4, 1852
Milly Dove
Mother of Pearl (1860)
My Wife's Tempter (1858)
The Other Night [anon.]
American Whig Review, Dec 1852 *
The Phantom Light (novella)
The Pot of Tulips
Harper's, Nov 1855
Seeing the World
Harper's, Sept 1857
A Terrible Night
Harper's, Oct 1856
Three of a Trade; Or, Red Little Kriss Kringle
Saturday Press, Dec 25, 1858
Tommatoo (1862)
A Voyage in my Bed [anon.]
American Whig Review, Sept 1852 *
What Was It? A Mystery
Harper's, March 1859
The Wonderful Adventures of Mr. Papplewick
The Lantern, Mar 13-May 8, 1852
The Wondersmith (novella)
Atlantic Monthly, Oct 1859
* From "Fragments from an Unpublished Magazine"
Biographical and Critical
Clareson, Thomas D. "Fitz-James O'Brien." In E.F. Bleiler, ed., Supernatural Fiction Writers. New York: Charles Scribner's Sons, 1985.
Franklin, H. Bruce. "Fitz-James O'Brien and Science Fiction." In Future Perfect: American Science Fiction of the Nineteenth Century. New York: Oxford University Press, 1966.
Moskowitz, Sam. "The Fabulous Fantasist--Fitz-James O'Brien." In Explorers of the Infinite. Cleveland and New York: World, 1963.
Wolle, Francis. Fitz-James O'Brien: A Literary Bohemian of the Eighteen-Fifties. Boulder: University of Colorado Press, 1944. Moskowitz calls it "a work of top-rank scholarship" but I have not seen it.