swatch แปลว่า

"It muſt be obſerved, that the paſſages, called Cockerlees, are no other than ſwatches through the Long-Sand."

"The Swatch, or Swatch of no ground, a chaſm in the bank, is ſituated between the latitudes of 21° and 21° 22′ North, and the middle of it lies about 50 leagues Weſt of the meridian of the White Cliffs."

"Opposite the middle of the delta, at the distance of thirty or forty miles from the coast, a deep submarine valley occurs, called the "swatch of no ground," about fifteen miles in diameter, where soundings of 180, and even 300, fathoms fail to reach the bottom. […] As the mud is known to extend for eighty miles farther into the gulf, an enormous thickness of matter must have been deposited in "the swatch.""