Her lever was the wand of art, Her fulcrum was the human heart, Whence all unfailing aid is; She moved the earth, its thunders pealed, Its mountains shook, its temples reeled, The blood-red fountains were unsealed, And Moloch sunk to Hades." Mrs. Stowe, in the preface of her son's biography of herself, aptly quotes the words of Mr. Valiant-for-Truth in the "Pilgrim's Progress:" "My sword I give to him that shall succeed me in my pilgrimage, and my courage and skill to him that can get it." May God grant us courage and skill to use the memory of "Uncle Tom's Cabin" to serve the "white slaves" of our own time and city! To begin by quoting from Mrs. Stowe's famous story: "The cabin of Uncle Tom was a small log building close adjoining to 'the house,' as the negro _par excellence_ designates his master's dwelling. In front it had a neat garden-patch where every summer strawberries, raspberries, and a variety of fruits and vegetables flourished under careful training." This little log house was a small and crowded dwelling-place for Uncle Tom and his wife and little ones, yet it had several things in its favor. In the first place it had plenty of sunshine and pure air. It was an individual cabin, occupied by Uncle Tom's family alone. The climate was sunshiny; and when Uncle Tom's wife, Aunt Chloe, wanted to wash, she could build a fire out in the open air, and spread her clothing on the fragrant raspberry-bushes, while her woolly-headed little flock were sent scampering over the pastures and fields. Now let us look at the Boston cabins. In the first place, there are no individual cabins for the poor. The price of land makes that impossible. A big Boston tenement house means from four to ten cabins on a floor, and from three to six floors under one roof. In a great many of these sunlight is an impossibility. Boston is peculiarly cursed with the rear tenement. All through the North End and some parts of the West End and "the Cove," there abound dark courts, oftentimes reached only by a tunnel, that are almost entirely barren of the sunlight. For instance, there is a court off North Street, reached by a tunnel such as I have described, where the tenement houses are three deep from the street. [Illustration: COURT OFF NORTH STREET.]