Her ribs rose and fell in great slow swells.

The sight left no doubt that they were floating atop the water, rising and falling with its slow swells.

The slow swell in his mind blended with the undulating sand.

They were standing side by side, bracing themselves against the slow swell.

A wave elevated him, a long, slow swell of blue under the gray sky.

Only the easy, even rise of the slow swell imparted other motion to the steamship.

Not under the slow swell of the continental monster.

The boat rocked gently, lifting on the bosom of a long, slow swell.

Down there, the sea washed its great slow swells against the foot of the cliff as if nothing had happened.

The sea beneath the wizard humped as though with a slow swell.