41.   But whatever the explanation, Provine is convinced that laughter is not under conscious control.

42.   By the end of the week, there was no laughter.

43.   Duval and the others agreed that the changes were working, and there was laughter from all.

44.   For Midler, laughter is work.

45.   For Milton Berle, laughter was not his living.

46.   For the ancient Greeks, laughter was serious stuff.

47.   For others there was no laughter, only tears.

48.   For what ails the Lakers right now, laughter might be the best medicine.

49.   He is a man with an easy manner, and laughter is an essential part of him.

50.   Her depiction of desperate struggles to survive ruinous dust storms had touches of humor that implied that laughter can be a weapon in battles against adversity.