51.   Voice mail systems also became more dependable and less expensive.

52.   With four phone lines and two voice mail systems, I can always stay connected.

53.   A co-worker underwent tests for a suspicious skin lesion, heightening concern the disease was spreading outside the U.S. mail system.

54.   A call placed to Environmental Tectonics after business hours Thursday was answered by a voice mail system.

55.   A co-worker undergoes tests for a suspicious skin lesion, heightening concern the disease was spreading outside the U.S. mail system.

56.   A co-worker underwent tests for a suspicious skin lesion, heightening concern the disease was spreading outside the mail system.

57.   A spokesman for the BBC said it was believed the envelope was handed in at one of the many BBC receptions and then delivered through the internal mail system.

58.   Aeroplanes and ships have made travelling much easier and faster while the mail system has enabled us to exchange and receive information in a matter of weeks.

59.   And in recent days, the Postal Service and Bush administration have launched an intensive effort to assure the safety of the mail system.

60.   As the United States struggled to keep its mail system safe from anthrax, Mueller also warned the government would respond severely to hoaxes.