"It says, '380 meters, dogleg left, principal hazards bunk- er left, minefield right.'"

The principal hazards include collisions between a rail vehicle and a track worker, electrocution from traction power sources (third rail, fourth rail, OHLE) and trips and falls.

In three cases, the principal potential hazard of the substitutes is acute eye, skin and/or respiratory irritation.

Mostly, though, the candidates probably already know enough about the principal hazard that many economists say is facing the country: the big budget deficits.

The principal hazards of acetone cyanohydrin arise from its ready decomposition on contact with water, which releases highly toxic hydrogen cyanide.

The principal hazards Tony had suffered were vipers in the dry campsites and wild boars in the bottomlands-and unexpected perils from members of his own predatory species.

Landslides and acid mine drainage are two principal hazards of the area.

The principal hazard that Jim and Frank faced in getting to the school's offices was the chance of running into some restless student going to the washroom after hours.

Hurricane Jose in 1999 cause minor damage because the hurricane passed northward and flooding was the principal hazard as several main roads were washed out and landslides were reported.

The principal hazard associated with bivouacs is the greater level of exposure to cold and the elements.