71.   But fewer than half agree with a currently hallowed educational principle, that fast learners and slow learners should be mixed in the same classes.

72.   But mix in McCown during crunch time.

73.   But maybe just this once he should consider mixing in a little comic relief with the rebounding drills.

74.   But reactions are mixed in the scientific community, with some applauding the result and others saying that they still are not convinced.

75.   But the benefits are sometimes easily forgotten on the night shift, when inexperience, ignorance and sickness mix in unsettling ways.

76.   But the Longleaf fund mixes in some growth companies, too.

77.   But the researchers found that when they mixed the bacteria with human blood in test tubes, they led clots to form.

78.   But some are mixed in unusual ways.

79.   But the tactic, which has had mixed results in countries like South Korea and Indonesia over the last several months, does nothing to address underlying economic problems.

80.   But the dollar was still mixed in international currency markets, a measure of continuing international wariness of the U.S. rescue of the Mexican economy.