History! It is spread up and down this main street of Germantown, it slips down the side-streets and up the alleys, into the hospitable front-doors of stout stonehouses. Here it shows its teeth in the bullet-holes of the aged wooden fence back of the Johnson house and here is the Logan house, the Morris house, the Wend house, the Concord school and the burying-ground. Any resident of Germantown will tell you what these old houses mean to it, the part they have played in its making. After Germantown--Philadelphia itself. The road dips down a sudden hill, loses itself in a short tunnel under a black maze of railroad tracks. Beyond the railroad track the city is solidly built, row upon row of narrow streets lined with small flat-roofed brick houses, the monotony only accentuated by an occasional church-spire or towering factory. In the distance a group of higher buildings--downtown Philadelphia--rising above the tallest of them Father Penn poised on the great tower of the City Hall. No need now for more tramping. The fascination of the open country is gone and a trolley car will take you through tedious city blocks--in Philadelphia they call them squares--almost to the door of that City Hall. They _are tedious_ blocks. Architecturally Philadelphia is the most monotonous city in America with its little red-brick houses. Dr. S. Weir Mitchell who has known it through all the years of his life has called it the "Red City" and rightly, too. For mile after mile of the older Philadelphia is mile after mile of those flat-roofed red-brick houses. They seemingly must have been made at some mill, in great quantities and from a limited variety of patterns. For they are almost all alike, with their two or three stories of narrow windows and doors; steps and lintels and cornice of white marble and invariably set close upon the sidewalk line. There is no more generosity than individuality about the typical side streets of Philadelphia. A single thing will catch your eye about these Philadelphia houses--a small metal device which is usually placed upon the ledge of a second-story window. The window must be my lady's sitting-room, for a closer look shows the device to be a mirror, rather two or three mirrors, so cunningly placed that they will show her folk passing up and down or standing upon her doorstep without troubling her to leave her comfortable rocking chair. There must be a hundred thousand of these devices in Philadelphia. They call them "busy-bodies" quite appropriately, and they are as typical of the town as its breakfast scrapple and sausage. * * * * *