STATELY, PLUMP BUCK MULLIGAN CAME FROM THE STAIRHEAD, bearing a bowl of lather on which a mirror and a razor lay crossed. A yellow dressing gown, ungirdled, was sustained gently-behind him by the mild morning air. He held the bowl aloft and intoned:-- Introibo ad altare Dei.Halted, he peered down the dark winding stairs and called up coarsely:-- Come up, Kinch. Come up, you fearful jesuit.Solemnly he came forward and mounted the round gunrest. He faced about and blessed gravely thrice the tower,