It was four o'clock of a stickily wet Saturday. As long as it is anything from Monday to Friday the average library attendant goes around thanking her stars she isn't a school-teacher; but the last day of the week, when the rest of the world is having its relaxing Saturday off and coming to gloat over you as it acquires its Sunday-reading best seller, if you work in a library you begin just at noon to wish devoutly that you'd taken up scrubbing-by-the-day, or hack-driving, or porch-climbing or- anything on earth that gave you a weekly half-holiday!