He came here from England - with its teeming cities and skies already blackened by factory smoke - at the age of 17.

Forty-five pages' worth of unanswered questions: Was the sky in Hackensack ever really that black with factory smoke?

In his eyes the medieval age shone through the factory smoke and city grime as a pathway to a more moral life.

The original factory smoke stack still exists and is now heritage listed.

The factory smoke stings the eyes, clogs the chest and, they said, produces so much soot that walls must be repainted three times a year.

Up here, in the Grammar School, she fancied the air was finer, beyond the factory smoke.

The haze of factory smoke intruded on God's sky and lay suspended like a flat, grey tarpaulin above the horizon.

Suppose someone knocks on your door and says: 'I am collecting bribes from people who mind the factory smoke falling on their gardens.

Coase argues that a factory emitting smoke is not entirely responsible for the social harm of smoky air.

It had reached out its long arms to embrace the tower, and the air stank of factory smoke.