51.   Temperatures are increasing in this area as water heated from parking lots, roads and other hard surfaces runs off into the river, Klein said.

52.   Tanks and bowls can break if dropped on a hard surface.

53.   The injury, the Giants said, occurred when his elbow hit a hard surface such as a helmet or the ground.

54.   The metal is shaped against hard surfaces, brazed, soldered and buffed.

55.   The prosecution says the child was violently shaken and his head hit against a hard surface, fracturing his skull.

56.   The prosecution contended the baby was shaken or tossed roughly on a hard surface, resulting in bleeding in the brain.

57.   The prosecution said Ms. Woodward shook and probably slammed the baby against a hard surface.

58.   The slippery clay courts of Rolland Garros are a constant trial to players, like Sampras, grown on hard surfaces.

59.   They have this . . . hard surface, not letting on what they know.

60.   To get ready for the feel of it, Steve has been practicing sleeping on hard surfaces.