Poe's numerous tales may be grouped in three or four classes. Standing by itself is "William Wilson," a story of double personality (one good and one evil genius in the same person), to which Stevenson was indebted in his _Strange Case of Dr. Jekyll and Mr. Hyde_. Next are the tales of pseudo-science and adventure, such as "Hans Pfaall" and the "Descent into the Maelstrom," which represent a type of popular fiction developed by Jules Verne, H. G. Wells and many others, all of whom were more or less influenced by Poe. A third group may be called the ingenious-mystery stories. One of the most typical of these is "The Gold Bug," a tale of cipher-writing and buried treasure, which contains the germ, at least, of Stevenson's _Treasure Island_. To the same group belong "The Murders in the Rue Morgue" and other stories dealing with the wondrous acumen of a certain Dupin, who is the father of "Old Sleuth," "Sherlock Holmes" and other amateur detectives who do such marvelous things in fiction,--to atone, no doubt, for their extraordinary dullness in real life. Still another group consists of phantom stories,--ghastly yarns that serve no purpose but to make the reader's spine creep. The mildest of these horrors is "The Fall of the House of Usher," which some critics place at the head of Poe's fiction. It is a "story of atmosphere"; that is, a story in which the scene, the air, the vague "feeling" of a place arouse an expectation of some startling or unusual incident. Many have read this story and found pleasure therein; but others ask frankly, "Why bother to write or to read such palpable nonsense?" With all Poe's efforts to make it real, Usher's house is not a home or even a building in which dwells a man; it is a vacuum inhabited by a chimera. Of necessity, therefore, it tumbles into melodramatic nothingness the moment the author takes leave of it. [Sidenote: WHAT TO READ] If it be asked, "What shall one read of Poe's fiction?" the answer must depend largely upon individual taste. "The Gold Bug" is a good story, having the adventurous interest of finding a pirate's hidden gold; at least, that is how most readers regard it, though Poe meant us to be interested not in the gold but in his ingenious cryptogram or secret writing. The allegory of "William Wilson" is perhaps the most original of Poe's works; and for a thriller "The House of Usher" may be recommended as the least repulsive of the tales of horror. To the historian the chief interest of all these tales lies in the influence which they have exerted on a host of short-story writers at home and abroad. [Illustration: _SOUTHERN LITERARY MESSENGER_ BUILDING] AN ESTIMATE OF POE. Any summary of such a difficult subject is unsatisfactory and subject to challenge. We shall try here simply to outline Poe's aim and method, leaving the student to supply from his own reading most of the details and all the exceptions.