I was much indebted for understanding all this, and acting on it boldly, as I did, to the city editor and chief reporter on the _Evening Bulletin_, Caspar Souder. The Mayor of the city was Richard Vaux, a man of good family and education, and one who had seen in his time cities and men, he having once in his youth, on some great occasion, waltzed with the Princess--now Queen--Victoria. Being popular, he was called _Vaux populi_. I wrote very often leaders urging Mayor Vaux by name to establish a fire-detective department. So great was the indignation caused among the firemen, that I incurred no small risk in writing them. But at last, when I published for one week an article every day clamouring for a reform, Mayor Vaux--as he said directly to Mr. Souder, "in consequence of my appeals"--vigorously established a fire-marshal with two aids. By my request, the office was bestowed on a very intelligent and well-educated person, Dr. Blackburne, who had been a surgeon in the Mexican war, then a reporter on our journal, and finally a very clever superior detective. He was really not only a born detective, but to a marked degree a man of scientific attainments and a skilled statistician. His anecdotes and comments as to pyromaniacs of different kinds were as entertaining and curious as anything recorded by Gaboriau. Some of the most interesting experiences of my life were when I went with Dr. Blackburne from place to place where efforts had been made to burn houses, and noted the unerring and Red-Indian skill with which he distinguished the style of work, and identified the persons and names of the incendiaries. One of these "fire-bugs" was noted for invariably setting fire to houses in such a manner as to destroy as many inmates as possible. If there were an exit, he would block it up. Dr. Blackburne took me to a wooden house in which the two staircases led to a very small vestibule about three feet square before the front door. This space had been filled with diabolical ingenuity with a barrel full of combustibles, so that every one who tried to escape by the only opening below would be sure to perish. Fortunately, the combustibles in the barrel went out after being ignited. "I know that fellow by his style," remarked the Doctor, "and I shall arrest him at four o'clock this afternoon."