All students of criminology—and all friends of truth—are under a debt of gratitude to Mr. Brennan for the cool, precise and perfectly dispassionate manner in which he has, inter alia, analysed the statements of these two people, Harding and Matthews. He has placed the salient features side by side. There seems no escape from the irresistible logic of his conclusion—that Matthews and Harding, knowing certain facts about Ross from an outside source, were compelled to fill in the gaps in their own way. They could not have been drawing from the one alleged source when they differed so absolutely as to the essential circumstances of the crime. As Mr. Brennan points out, he is not undertaking to prove that Ross was innocent of the Gun Alley murder. Anyone who reads his closely reasoned pages can have little doubt that such is his opinion. But his task is simpler. It is to show that Ross should not have been convicted on the evidence, that the evidence for the Crown was, to a large extent, contradictory—far more so than in the heat and passion of the trial was allowed to appear. He is able to go even further than that, and to show that a great part of it, so far from being cumulative on other parts, as the jury may have naturally believed, was really destructive of those other parts. He has performed his task with care and discretion. No one who reads Mr. Brennan’s review of the case can doubt that he has thrown off the role of advocate—ably as he sustained it at the trial and on the two appeals—and is only anxious to arrive at the truth. There should be no other desire in the minds of any reader; and the people of Australia, who cannot possibly have followed the case with the care that Mr. Brennan has followed it, will appreciate both the value of his work and the deep interest of the story that he tells. Whether they think the mystery of the Gun Alley murder was cleared up by the jury’s verdict, or whether it remains a mystery is for them to say. A. J. BUCHANAN. Selborne Chambers, Melbourne. PART I. INTRODUCTORY. On the early morning of the last day of the year 1921 the dead body of a little girl of 12, named Alma Tirtschke, was found by a bottle-gatherer in an L-shaped right-of-way off Little Collins Street. She had been violated and strangled, and her nude body had been placed in Gun Alley. On the morning of Saturday, February 25th, 1922, Colin Campbell Ross, a young man of 28, was found guilty of her murder, and on the morning of April 24th he was executed in the Melbourne Gaol. Face to face with his Maker, as he himself put it, he asserted his innocence on the scaffold in terms of such peculiar solemnity as to intensify the feeling, already widely prevalent, that an innocent man had been done to death.