1.   Robins signal the arrival of spring.

2.   Shelley stood bewitched, until the clear feminine shout from the wings and a clatter of castanets signalled the arrival of the dancers in their vivid flounces.

3.   And the party signaled its arrival last year when Cardenas became the first mayor of Mexico City this century to be picked by popular election.

4.   Alan Campbell is waving his bell, that distinctive jingle that signals the arrival of the holiday season.

5.   But it signals the arrival of a promising filmmaker and is worth sticking with.

6.   Clouds in the Middle Atlantic States will signal the arrival of moisture from the Gulf region.

7.   Early morning showers over the interior Northeast will signal the arrival of sultry air from the Midwest.

8.   Farther east, high clouds will gradually gather over the Northeast, signaling the arrival of showers Saturday night and Sunday.

9.   In some rural areas, elderly residents will remember the knock at the door that signaled the arrival of a hot meal, a kind word and companionship.

10.   In the computer room, a glitter of green lights signaled the arrival of the DNA sequence information through optic fiber switches.