It is curious to find that this notorious block, whose name was so long synonymous with all that was desperately bad, was originally built (in 1851) by a benevolent Quaker for the express purpose of rescuing the poor people from the dreadful rookeries they were then living in. How long it continued a model tenement is not on record. It could not have been very long, for already in 1862, ten years after it was finished, a sanitary official counted 146 cases of sickness in the court, including "all kinds of infectious disease," from small-pox down, and reported that of 138 children born in it in less than three years 61 had died, mostly before they were one year old. Seven years later the inspector of the district reported to the Board of Health that "nearly ten per cent. of the population is sent to the public hospitals each year." When the alley was finally taken in hand by the authorities, and, as a first step toward its reclamation, the entire population was driven out by the police, experience dictated, as one of the first improvements to be made, the putting in of a kind of sewer-grating, so constructed, as the official report patiently puts it, "as to prevent the ingress of persons disposed to make a hiding-place" of the sewer and the cellars into which they opened. The fact was that the big vaulted sewers had long been a runway for thieves--the Swamp Angels--who through them easily escaped when chased by the police, as well as a storehouse for their plunder. The sewers are there to-day; in fact the two alleys are nothing but the roofs of these enormous tunnels in which a man may walk upright the full distance of the block and into the Cherry Street sewer--if he likes the fun and is not afraid of rats. Could their grimy walls speak, the big canals might tell many a startling tale. But they are silent enough, and so are most of those whose secrets they might betray. The flood-gates connecting with the Cherry Street main are closed now, except when the water is drained off. Then there were no gates, and it is on record that the sewers were chosen as a short cut habitually by residents of the court whose business lay on the line of them, near a manhole, perhaps, in Cherry Street, or at the river mouth of the big pipe when it was clear at low tide. "Me Jimmy," said one wrinkled old dame, who looked in while we were nosing about under Double Alley, "he used to go to his work along down Cherry Street that way every morning and come back at night." The associations must have been congenial. Probably "Jimmy" himself fitted into the landscape.