61.   But it also turns out that most of these new jobs are so good, they are of little use to workers who lack higher educations.

62.   But it is of limited use to playwrights, whose principal traffic is in talk.

63.   But it could be tweaked to be of use to the poor.

64.   But Jeffrey Sachs of the Harvard Institute for International Development warns countries to limit their use to inflows of short-term investment.

65.   But officials said such material was of little use to prosecutors, who build their cases around witnesses willing to testify in U.S. courts.

66.   But semiconductors based on it have been expensive and difficult to manufacture, confining its use mainly to high-performance computing and limited consumer applications.

67.   But old mining towns upstream also depend on the water from Clear Creek for everything from household uses to running the Georgetown Loop steam train in the summer.

68.   But the expense of such lines usually limits their use to large businesses and government.

69.   But the gift is of little use to homeowners who wish to continue living in their homes and leave them to their children when they die.

70.   But the provision may be of use to some retirees.