Introduction / The purloined letter / Three "detective" anecdotes / The little old man of Batignolles / "Thou art the man" / The great ruby robbery / The Lenton Croft robberies / The Duchess of Wiltshire's diamonds / The mystery of the Felwyn Tunnel / The case of Oscar Brodski / The coin of Dionysius / A hunt for a murderer / The tragedy of a third smoker / The green-stone god and the stockbroker / The contents of the coffin / Sir Gilbert Murrell's picture / The hundred thousand dollar robbery / The Hammer of God / The riddle of the 5:28 / The affair of the double thumb print / The art of forgery / The case of Helen Bond / The amateur / The problem of Cell 13 / The angel of the Lord / The wire-devil / Francis Lynde -- Philo Gubb's greatest case / The lost diamonds / The unknown weapon / The diary of Anne Rodway / How he cut his stick / The man with the wild eyes / The golden slipper / Mandragora / The murder at Troyte's Hill / The great Pegram mystery / The adventure of the clothes-line / The stolen cigar case / The adventures of Shamrock Jolnes / The Umbrosa burglary / An irreducible detective story / Biographical notes -- Sources.