41.  Mindful of this history, the experimenters have resorted to heroic efforts to avoid contamination.

42.  Not even a heroic effort by the remarkable Randy Johnson.

43.  No heroic efforts would flow from the Indians center fielder on this night, however, as Borbon induced him to line out hard to right fielder David Justice.

44.  Soderquist said the firefighters made a heroic effort to save themselves and others.

45.  Some believe that heroic engineering efforts might render the planet habitable in a few centuries.

46.  Some record the heroic efforts of pioneers to settle the West.

47.  The spine of the story, about the bombing itself, the heroic efforts to rescue her and her struggle to recuperate, are handled powerfully and movingly.

48.  Theirs has not been a heroic effort.

49.  Then came his most heroic effort of the day.

50.  Todd Zeile struggled all night with the effects of a chest cold and could not further the heroic efforts he has turned in the past month.