Through the lens he saw a column of black vapor rising skyward.

Raynor saw a puff of black vapor as the truck in front of him started up.

When Mr. Henderson came, he looked for a long time at a cloud of black vapor which hung low in the east.

A big cloud of black vapor down in the meadow told Tom and Ned that Koku and Eradicate had done their work well.

Those rings of black vapor drove the bees back and, as the smoke rose through the cracks, prevented them from coming down again.

For an instant all was blank, a mist of black vapor; then a realization of their situation came back in sudden flood of remembrance.

He has befogged even my brain at last with his black vapors.

None of those black vapors which the manufacturer loves to see, hung in the horizon, mingling with the clouds.

I see black vapors over the parent marsh... and the eye is scarcely quick enough to follow...

Amid clouds of white rifle smoke and the dense black vapors of flaming buildings, houses with wide doors and windows bolted shone in the sunlight.