Mention may also be made of the case of Ulick Maguire, an Irish farmer, whose wife dreamed that her husband had been murdered by a disappointed lover of hers, named O’Flanagan. A few days later an idiot boy, who lived in the house, was heard shrieking in terror: “Shanus dhu more O’Flanagan (big black James) has kilt Ulick, and buried him under the new ditch at the back of the garden. I dhramed it last night, evry wurrd av it.” The singular coincidence of the lad’s dream with her own excited Mrs. Maguire’s suspicions to the utmost, especially as her husband was away from home at the time. She ordered a search at the particular spot mentioned by the idiot boy, and there, to her horror, was found the body of Ulick, with the skull cleft in twain. Immediate request was made for “big black James.” He had absconded and enlisted in the army, but on being charged with the crime he admitted his guilt, and suffered the penalty of death.

In one instance, by far the most wonderful of its kind, the victim of a murder has appeared in successive dreams, and played the part of detective with admirable skill and effectiveness. A Grub Street victualler, named Stockton, was murdered towards the close of the seventeenth century. Three men were suspected of the crime, but neither of them could be discovered, and the affair seemed likely to become one of the mysteries of crime, when a Mrs. Greenwood dreamed that Stockton, who had been a neighbour during life, had taken her to a house in Thomas Street, telling her that his murderer was inside. On going to the house in person Mrs. Greenwood was told that Maynard, one of the suspected men, had gone abroad. The following night Stockton appeared and showed her the features of Maynard, and gave her such particulars of the man’s habits and resorts that he was captured within a few hours. From Maynard the names of his partners in guilt, Bevel and Marsh, were obtained, but again the authorities were at fault, until Stockton indicated the house where Marsh visited, and the yard (afterwards discovered to be the yard of Marshalsea Prison) in which Bevel would be found. From a crowd of other prisoners Mrs. Greenwood identified Bevel, and shortly afterwards, through her strange testimony, Marsh also was arrested. Then, as an old chronicle of the case affirms, Stockton appeared for the last time, and thanked her for her good offices. We have given the story as it has come down through two centuries; a whole body of clergymen attested its accuracy at the time, and present-day enquirers would have great difficulty, we imagine, in conclusively proving that the murder of Stockton was traced by other and less extraordinary means.

Closely allied to the evidence furnished by dreams, and indeed, as in the foregoing case of Stockton, sometimes barely distinguishable from it, is that offered by ghosts, actually seen by witnesses in a waking, but hallucinatory, state. Such evidence would scarcely be admissable in modern courts of law, but in past ages it was freely employed, and has served to bring criminals to the gallows. It must be admitted that the other testimony against the accused was strong, but in numerous instances ghosts have been instrumental in putting the officials on to a clue or track which they would most likely never have discovered by their own unaided efforts. In his “History of Durham,” Surtees mentions the case of Anne Walker, who lived in 1630, and had become engaged in an intrigue with a relative of the same name. The girl was placed for a time under the care of a friend in a neighbouring village, but one night she was removed from there by Walker and a man named Sharp. From that date no one saw her alive. A fortnight afterwards, Graime, a fuller, was terrified by the appearance in his mill of Anne Walker’s ghost, “dishevelled, blood-stained, and with five wounds in her head.” She told him the whole story of her murder; how Sharp had killed her with a collier’s pick, and then thrown her body down a shaft. Graime hesitated to use this strangely acquired information. Apparently incensed at his delay, Anne Walker repeatedly appeared, and in order to rid himself of these visitations, the frightened fuller at length acquainted the authorities with his story. Immediate enquiry confirmed his statements in every particular. Walker and Sharp were arrested, charged with the murder of the girl, found guilty, and executed, though to the last they maintained their innocence of the crime.

A case, somewhat similar, has occurred even in the present century, and in matter-of-fact, new world Australia, where visions might be expected to be few and far between. The friends of a well-to-do settler near Sydney were surprised to hear from his steward that he had been suddenly called to England on important legal business. Remembering the vast wealth of the man, and the necessity for precautions in regard to it, they accepted the statement, and also recognised the steward’s control of the estate during his master’s absence. What was the astonishment, however, of one of these friends, when on riding over the estate he saw the owner, whom he thought to be in England, sitting on a neighbouring stile? The figure looked at him silently and sorrowfully, then walked towards a pond and disappeared. Drags were procured and the water searched, when the body of the absent owner was brought to the surface. Confronted with the corpse the steward confessed that he had murdered his master at the identical stile on which the ghost had sat.

Pierre le Loyer, a French writer on law and the supernatural, mentions in his “Discours des Spectres,” the case of a man who mysteriously vanished, having, as was supposed, been murdered. A few weeks later the ghost of the absentee appeared to his brother, took him to a lonely spot, and there pointed out where he had been murdered and buried by his own wife and her lover. Enraged at this domestic perfidy and wickedness the brother denounced his sister-in-law, and on his testimony she was condemned to be strangled and her body afterwards burned.

About half a century ago a peculiar case of fraud was disclosed by remarkable means during the hearing of a law-suit in Tuscany. The decision of the court turned on the point whether a certain word had been erased from a particular document of importance. Chemical processes were alleged to have been employed, and acting on scientific knowledge one of the lawyers proposed that the document should be heated, as thereby a slight difference of shade or colouring between the paper and the letters supposed to have been removed might become visible. Permission was given to try the experiment, and on the application of heat the important word in question immediately appeared, and the court gave a verdict in accordance with this ingeniously devised testimony.

Since that time the progress and development of science have enabled criminal investigation to be conducted by methods which would otherwise be impossible, and with almost unerring certainty and decision. The microscope and the spectroscope have been employed in numerous cases of murder and forgery where less subtle means of discovery would have proved useless; chemical analysis has become an important agent of detection, while photography has also rendered signal service in the cause of justice. We may not have concerned ourselves with the numerous methods by which bank-note forgeries are detected; hitherto our references have been mainly to the more serious crime of murder, and with a few instances of this character brought to light through modern science our list must close.

Although, generally speaking, the microscope cannot discern any difference between the blood of man and that of other mammalia, yet the merest examination suffices to show the difference between mammalian blood and that of birds, reptiles, or fishes. In the one case the red blood corpuscles are round, and without a nucleus; in the other they are oval and nucleated. On this fact the evidence for a prisoner at Chelmsford charged with murder was completely rebutted. Blood stains had been found on his clothes, which, according to his counsel, had been caused by chicken’s blood. But the prosecution brought forward a microscopist, who stated that the blood stains were mammalian, and on this testimony the plea of the prisoner was rejected. In the following year, and at the same assizes, the testimony against a man charged with murder was strengthened by the microscopical discovery of cotton fibres on a certain weapon, which he was said to have used, while the murderers of a man who had been kicked to death were convicted on the evidence of two doctors, who found on the boots of the accused a number of hairs corresponding with the hair on the head of the victim. Evidence of this kind is becoming of extreme importance. Hardly a serious crime is investigated without the application of one or other of these scientific methods of detection, and with each success the career of the criminal becomes increasingly difficult and arduous, and his chances of success more remote. Of remarkable discoveries of crime the microscope, the camera, and the spectroscope furnish the most subtle instances, and it is quite possible that before long other methods of investigation, founded on the most recent scientific achievements, will also be brought into operation. The phonograph and the Röntgen rays are only waiting their turn to serve in the cause of justice.