The Proceedings of the Psychical Research Society have a twofold association with literature, for not only have various modern novels and stories been inspired by such material, but the instances recorded are similar in many cases to the classical ghost stories. Lacy Collison-Morley in his _Greek and Roman Ghost Stories_ says, "There are a number of stories of the passing of souls which are curiously like some of those collected by the Psychical Research Society, in the Fourth Book of Gregory the Great's _Dialogues_." The double source of many modern stories may be found by a comparative study of Collison-Morley's book and Myers's _Human Personality_, while G. H. Gerould's volume, _The Grateful Dead_, introduces recent instances that are like classical stories. The inability of the soul to have rest in the other world if its body was unburied, as held by the ancients, is reflected in Gothic romance, Elizabethan drama as well as in the classics. The ghost of Jack, whom Peele tells us about, is a case of a ghost coming back to befriend his undertaker. From these comparisons it would appear that there is something inherently true to humanity in these beliefs, for the revenge ghost and the grateful dead have appeared all along the line. Perhaps human personality is largely the same in all lands and all times, and ghosts have the same elemental emotions however much they may have acquired a veneer of modernity. There are many instances of the compact-ghost, the spirit who returns just after death in accordance with a promise made in life, to manifest himself to some friend or to some skeptic. Algernon Blackwood gives several stories based on that theme, one a curious case where the ghost is so lifelike his friend does not dream he is not the living man, and assigns him to a bedroom. Later he is invisible, yet undoubtedly present, for his heavy breathing, movements of the covers, and impress on the bed are beyond dispute. _Afterwards_, by Fred C. Smale, shows a ghost returning to attend a neighborhood club. When his name is called by mistake, he takes part on the program, speaking through the lips of a young man present, who goes off in a cataleptic trance. During this coma the youth, who is ignorant of music, gives a technical discussion of notation, analyzing diatonic semi-tones and discussing the note a nightingale trills on. When he wakes he says he has felt a chill and a touch. Alice Brown relates a story of a lover who promised to come to his sweetheart at the moment of death, but who, like Ahimeas in the Bible, runs before he is ready, and keeps his ghostly tryst while the rescuers bring him back to life. He hasn't really been drowned at all.