51.   The military considers anthrax to be the most serious of all biological threats.

52.   The punch enabled Mayweather to unload with a serious of unanswered shots along the ropes.

53.   The report was the latest in a serious of troubling signals from the isolated country.

54.   The state police chief, M.N. Saberwal, said the attack in Tulmulla was the most serious of about a dozen throughout the day.

55.   This event is the first in an ambitious serious of Grand Prix Tournaments sponsored by FIDE, the World Chess Federation.

56.   Two gunmen shot and killed a former policeman as he shopped with his wife late Friday, the most serious of several violent incidents across Northern Ireland.

57.   In frequent media interviews, Sahlin has also committed a serious of gaffes which might not be forgiven, commentators said.

58.   In the most serious of several deliberate Serb attacks on Thursday, a French armoured car was hit by Serb gunfire, seriously wounding a French soldier.

59.   A serious of explosions on Wednesday rocked this village in northern France after munitions dating from World War I blew up at a dump near here.

60.   All three are accused of genocide -- the most serious of war crimes -- and conspiracy to commit genocide.