[Illustration: _Photo: H.S. Mendelssohn, Pembridge Crescent, W._ DR. ANDERSON.] The chief of the Investigation Department has, of course, to be in close touch with all his subordinates; from his desk he can communicate with every branch of his department. The speaking tubes hang just behind his chair. A little farther off is the office telephone, which brings him into converse with Sir Edward Bradford, the Chief Commissioner, or with colleagues and subordinates in more distant parts of the "house." He is, and must be, an indefatigable worker, since the labours of his department are unceasing, and often of the most anxious, even disappointing, character. Dr. Anderson's successor is Colonel Henry, for many years Inspector-General of Police in Bengal, and more recently employed on special police duty at Johannesburg. He has been chosen for the post not alone because of his long police experience, but also because he is an expert in matters of identification, especially in regard to the "finger-prints" system and the Bertillon system of anthropometry. Mr. Macnaughten, the Chief Constable, or second in command of the Investigation Department, is essentially a man of action. A man of presence is Mr. Macnaughten--tall, well-built, with a military air, although his antecedents are rather those of the public school, of Indian planter life, than of the army. His room, like his chief's, is hung with speaking tubes, his table is deep with reports and papers, but the walls are bright with photographs of officials, personal friends, and of notorious criminals which Mr. Macnaughten keeps by him as a matter of business. Some other and more gruesome pictures are always under lock and key; photographs, for instance, of the victims of Jack the Ripper, and of other brutal murders, taken immediately after discovery, and reproducing with dreadful fidelity the remains of bodies that have been mutilated almost out of human semblance. It is Mr. Macnaughten's duty, no less than his earnest desire, to be first on the scene of any such sinister catastrophe. He is therefore more intimately acquainted, perhaps, with the details of the most recent celebrated crimes than anyone else at New Scotland Yard. [Illustration: _Photo: Byrne & Co., Richmond._ SIR EDWARD BRADFORD.] Nor can the detective officers of the City Police be passed by without an acknowledgment of their skill and their devotion to the public service, especially Mr. McWilliam, who has long been chief of the department. He has repeatedly shown himself a keen, clear-headed, highly intelligent official, and he has gained especial fame in the unravelling of forgeries and commercial frauds. The sixth of the so-called Whitechapel murders, that of Mitre Square, was perpetrated within the City limits, and brought the additional energies and acumen of the City detectives to the solution of a perplexing mystery. [Illustration: _Photo: Maull & Fox, Piccadilly, W._ MR. MELVILLE T. MACNAUGHTEN.]