Read it through once

Broad on both bows, at the distance of some two or three miles, and forming a great semicircle, embracing one half of the level horizon, a continuous chain of whale-jets were up-playing and sparkling in the noon-day air. Unlike the straight perpendicular twin-jets of the Right Whale, which, dividing at top, fall over in two branches, like the cleft drooping boughs of a willow, the single forward-slanting spout of the Sperm Whale presents a thick curled bush of white mist, continually rising and falling away to leeward.