Ca.s.sIUS, by Henry S. Whitehead. Copyright, 1931, by the Clayton Magazines; copyright, 1944, by August Derleth and Donald Wandrei. From "Jumbee and Other Uncanny Tales." By permission of Arkham House and Scott Meredith Literary Agency, Inc.

THE TARN, by Hugh Walpole. From "The Silver Thorn" by Hugh Walpole, copyright, 1928, by Doubleday & Company, Inc. By permission of the executors of the late Sir Hugh Walpole.

LITTLE MEMENTO, by John Collier. Copyright, 1938, by John Collier. By arrangement with Harold Matson.

OH, WHISTLE, AND I"LL COME TO YOU, MY LAD, by M. R. James. From "Best Ghost Stories of M. R. James," copyright, 1944, by Longmans, Green & Company. By arrangement with Edward Arnold & Co.

ONE SUMMER NIGHT, by Ambrose Bierce. From "Can Such Things Be?", copyright, 1909, by Albert & Charles Boni, Inc. By permission of the copyright holders.

TELLING, by Elizabeth Bowen. From "Joining Charles and Other Stories." By permission of the author and Jonathan Cape Limited.

THE JAR, by Ray Bradbury. Copyright, 1944, by Weird Tales; copyright, 1947, by Ray Bradbury. From "Dark Carnival." By permission of Arkham House and Scott Meredith Literary Agency, Inc.

THE BAD LANDS, by John Metcalfe. From "The Smoking Leg," copyright, 1925, 1926, by John Metcalfe. By arrangement with Brandt & Brandt.

GHOST HUNT, by H. R. Wakefield. Copyright, 1947, by Weird Tales. By permission of Arkham House and Scott Meredith Literary Agency, Inc.

SKULE SKERRY, by John Buchan. From "Adventure Magazine." Copyright, 1928, by The b.u.t.terick Company in the United States and Great Britain. By permission of the Tweedsmuir Trustees; acknowledgments to Houghton Mifflin Co. and Hodder & Stoughton, Ltd.

THE RED ROOM, by H. G. Wells. From "The Short Stories of H. G. Wells." Copyright, 1896, by Stone & Kimball. By permission of the author"s estate.

THE SACK OF EMERALDS, by Lord Dunsany. From "Tales of Three Hemispheres," copyright, 1919, by John W. Luce & Company. By permission of the author"s estate.

THE NIGHT REVEALS, by William Irish. Copyright, 1936, by Cornell Woolrich. By permission of the author.