1.   And a powdery substance sent to a New York Times reporter turned out tested negative for anthrax and other dangerous biological materials.

2.   And a US Airways flight from Charlotte, N.C., to Denver was diverted to Indianapolis after a powdery substance was found on the plane.

3.   Another case involves a former Home Depot employee in Frazier, Pa., who sent an envelope to the store containing a white powdery substance and a note.

4.   As they began their latest excursion, the cosmonauts reported a white powdery substance around their outer airlock hatch.

5.   At The New York Times, a reporter received an envelope containing a powdery white substance, and law enforcement officials were investigating.

6.   At the same time, a suspicious letter with a powdery white substance forced the New York Times offices closed and a third-floor newsroom emptied.

7.   - Two businesses in Naples, Fla., reported a powdery substance on mail delivered by a private courier service.

8.   A letter containing a powdery substance was also received on Friday in The New York Times offices in New York City.

9.   A small office building in Darien, Conn., was also evacuated Thursday after a powdery substance was found on a desk.

10.   A suspicious San Antonio patrolman stopped and searched the vehicle and Horne, who was arrested for possession of a powdery substance found in his wallet.