41.   Despite all the evidence that tobacco smoke is deadly, Americans seem hesitant to take drastic steps to protect themselves.

42.   Do not burn poison ivy, they said, because the smoke is toxic and can really do a job on eyes and lungs.

43.   Dust can cause a detector to go off when there is no smoke.

44.   Elsewhere in the state, the smoke was so heavy that National Guard helicopters had to use infrared equipment to find some of the fires.

45.   Everything went dark and there was smoke.

46.   First there is the smoke from the bomb, lifting off the mountains, roaming into the blue sky.

47.   For most people in the foothills of the Sierra Nevada east of Sacramento, the smoke is the main irritant.

48.   Friday, the smoke was concentrated most densely in Austin, followed by Houston and then Corpus Christi and Brownsville, state pollution experts said.

49.   He speculated that the smoke was from Serbs burning homes, as they have done throughout Kosovo.

50.   He tried to go back for the remaining two children, but the smoke was too thick.