The school was filing out along the main corridor of St. Sidwell's. It came with a tramp and a rustle and a hiss and a tramp, urged to a trot by the excited teachers. The First Division first, half-woman, carrying itself smoothly, with a swish of its long skirts, with a blush, a dreamy intellectual smile, or a steadfast impenetrable air, as it happened to be more or less conscious of the presence of the Head. Then the Second Division, light-hearted, irrepressible, making a noise with its feet, loose hair flapping, pig-tails flopping to the beat of its march. Then the straggling, diminishing lines of the Third, a froth of white pinafores, a confusion of legs, black or tan, staggering, shifting, shuffling in a frantic effort to keep time.