81.   Whisk the mixture every hour to break up the ice crystals and form a slush.

82.   You see the trail when the water vapors into ice crystals behind the plane.

83.   A high concentration of glucose acts like antifreeze in these frogs, blocking the formation of ice crystals in cells that would normally damage tissue.

84.   Ice crystals within these clouds caused an optical ring or halo effect around the sun, which was observable from many locations across the area.

85.   They are then pressed and their nectar is separated from any remaining ice crystals.

86.   Warm freon flushed through the system disolved the ice crystals.

87.   The crew of the space shuttle Columbia successfully repaired Sunday a malfunctioning air conditioner that had begun generating ice crystals, a NASA spokesman said.