Susan, who reports what passed, "she went directly out." Thus Mary and her father parted for the last time. It appears from this pathetic interview that the old man purposely treated her as Cranstoun's innocent dupe, to shield her, if possible, from the consequences of her guilt, of which, in the circumstances, he could have entertained no doubt. [Illustration: Facsimile of the Intercepted Letter to Cranstoun written by Mary Blandy (_From the original MS. in the Public Record Office_.)] Meanwhile Dr. Addington had applied to the mysterious powder the tests prescribed by the scientific knowledge of the time, which, if less delicate and reliable than the processes of Reinsch and Marsh--a red-hot poker was the principal agent--yielded results then deemed sufficiently conclusive. Judged by these experiments, Mrs. Morgan's mystic philtre was composed of nothing more recondite than white arsenic. When Dr. Addington called on Monday he found the patient much worse, and sent for Dr. Lewis, of Oxford, as he "apprehended Mr. Blandy to be in the utmost danger, and that this affair might come before a Court of judicature." He asked the dying man whether he himself knew if he had "taken poison often." Mr. Blandy said he believed he had, and in reply to the further question, whom he suspected to be the giver of the poison? "the tears stood in his eyes, yet he forced a smile, and said, 'A poor love-sick girl--I forgive her. I always thought there was mischief in those cursed Scotch pebbles.'" Dr. Lewis came, and confirmed Dr. Addington's diagnosis; by their orders Mary was that evening confined to her chamber, a guard was placed over her, and her keys, papers, "and all instruments wherewith she could hurt either herself or any other person" were taken from her. Dr. Addington graphically describes the scene when the guilty woman realised that all was lost. She protested that from the first she had been basely deceived by Cranstoun, that she had never put powder in anything her father swallowed, excepting the gruel drunk by him on the Monday and Tuesday nights, that she believed it "would make him kind to him [Cranstoun] and her," and that she did not know it to be poison "_till she had seen its effects_." She declined to assist in bringing her lover to justice--she considered him as her husband, "though the ceremony had not passed between them." In reply to further pertinent questions, e.g., whether she really pretended to believe in the childish business of the "love philtre"? why Cranstoun described it, if innoxious, as "powder to clean the pebbles with"? why, in view of her father's grave condition, she failed sooner to call in medical aid? and why she had concealed from him (Addington) what she knew to be the true cause of the illness? her answers were not such, says Dr. Addington, as gave him any satisfaction. She made, however, the highly damaging admission that, about six weeks before, she had put some of the powder into her