Of testimony against O'Sullivan, there was an abundance. Justice Mahoney told of being present when the contract for professional services was made between the iceman and the physician, and Mrs. Addie J. Farrar testified that the iceman had said to her, after the disappearance, that Dr. Cronin was a British spy, and that if he had given away any of the secrets of the secret organization he ought to have been killed. Editor R. T. Stanton, of the Lake View _Record_, showed that the particular card of O'Sullivan's that had been used to entice Dr. Cronin from his home had been printed for and delivered to the iceman two days before the murder. The first evidence connecting Kunze with the murderers, or their different places of rendezvous, was given by Willie James, a sixteen-year old stenographer, who swore that he had seen Kunze wash his feet at the window of the Clark street flat in the month of March, while Mertes, the milkman, positively identified the little German as the man who had driven a big broad-shouldered man to the Carlson cottage on the night of the murder, and likewise identified Coughlin as the man he had seen run up the steps of the slaughter-house and disappear behind the front door. Kunze rocked to and fro with fury during this testimony, and glared wickedly at the witness. Coughlin's gaze never left his accuser, but his face flushed and his deep set eyes blazed. SURPRISES FOR THE DEFENSE. From a medical point of view, the testimony of Microscopists Tolman and Belfield, and Chemist Haines, of the Rush Medical College was exceedingly interesting. Stains from the floor of the Carlson cottage, the hair found clinging to the trunk purchased by Simonds, the hair cut from the head of the murdered man, the single thread of hair discovered on cake of soap in the kitchen of the cottage, and fresh and dried blood from the trunk itself, were the articles on which the experts had experimented. The chemist had been requested to determine whether the reddish stains were those of blood, while the task of determining the probable origin of the blood and the relation of one hair to the other was assigned to the microscopists. The evidence of all three experts was conclusive. Chemist Haines had subjected the stained chips from the floor of the cottage to four experiments, three of a chemical nature and the fourth with a microscope, and the result furnished indubitable proof that the stains were those of blood, while Microscopist Tolman, by other tests, was equally well satisfied that the blood had come from a human body. Additional tests had been made on a strand of hair found on the cake of soap, and which was lighter in color in some portions than in others, while Dr. Cronin's hair was brown. The fact that the single strand appeared light in color to the naked eye seemed to indicate that it could not have come from Dr. Cronin's head, but it was demonstrated by the experts that hairs placed on soap or other alkaline substances