71.   By bringing so many groups together, the coalition has been able to unleash waves of constituents on members of Congress at regular intervals.

72.   By freezing samples of the bacteria at regular intervals, he amassed a fossil-record-like series of ancestors and descendants.

73.   By putting a specified sum of money into a stock at regular intervals, you get more shares for your money when prices are down.

74.   Companies routinely notify their employees at regular intervals about the size of their holdings in these programs.

75.   Conventional illicit doping measures require athletes to be injected at regular intervals with EPO to maintain the endurance benefit.

76.   Conducted by two different companies at the B Street Pier, they leave at regular intervals throughout the day, and guides provide information on just about everything afloat.

77.   Deadly mayhem rears its head at regular intervals.

78.   Drink at regular intervals throughout the day before you get thirsty, as well as before, during and after vigorous activity or exercise.

79.   Directed by Karen Arthur, the miniseries is a tedious parade of misery interrupted at regular intervals by splashy shows of sex and violence.

80.   Disbursements are being made at regular intervals after performance goals are met.