At a few minutes past three o'clock on a particularly warm afternoon in late September of last year three boys removed themselves and their luggage from the top of a Fifth Avenue stage in New York City and set forth eastward along Forty-second Street. Although decidedly dissimilar in looks and slightly dissimilar in build, they showed, nevertheless, a certain uniformity of carriage and action and, to a lesser degree, of attire. There was nothing strange in that, however, since, for the last two years, at least, they had spent nine months of the twelve in the same place, at the same pursuits and under the same discipline.