When we leave the arsenical-minded and seek for cases where other poisons were employed there is still no lack of material. There is, for example, the case of Sarah Pearson and the woman Black, who were tried at Armagh in June 1905 for the murder of the old mother of the latter. The old woman, Alice Pearson (Sarah was her daughter-in-law), was in possession of small savings, some forty pounds, which aroused the cupidity of the younger women. Their first attempt at murder was with metallic mercury. It rather failed, and the trick was turned by means of three-pennyworth of strychnine, bought by Sarah and mixed with the old lady's food. The murder might not have been discovered but for the fact that Sarah, who had gone to Canada, was arrested in Montreal for some other offence, and made a confession which implicated her husband and Black. A notable point about the case is the amount of metallic mercury found in the old woman's body: 296 grains--a record. Having regard to the condition of life in which these Irishwomen lived, there is nothing, to my mind, in the fact that they murdered for forty pounds to make their crime more sordid than that of Mary Blandy. Take, again, the case of Mary Ansell, the domestic servant, who, at Hertford Assizes in June 1899, was found guilty of the murder of her sister, Caroline, by the administration of phosphorus contained in a cake. Here the motive for the murder was the insurance made by Ansell upon the life of her sister, a young woman of weak intellect confined in Leavesden Asylum, Watford. The sum assured was only L22 10s. If Mary Blandy poisoned her father in order to be at liberty to marry her lover, Cranstoun, and to secure the fortune Cranstoun wanted with her, wherein does she shine above Mary Ansell, a murderess who not only poisoned her sister, but nearly murdered several of her sister's fellow-inmates of the asylum, and all for twenty odd pounds? Certainly not in being less sordid, certainly not in being more 'romantic.' There is, at root, no case of murder proved and accepted as such which does not contain its points of interest for the criminological writer. There is, indeed, many a case, not only of murder but of lesser crime, that has failed to attract a lot of attention, but that yet, in affording matter for the student of crime and criminal psychology, surpasses others which, very often because there has been nothing of greater public moment at the time, were boomed by the Press into the prominence of causes celebres.