41.   These tools included blades, scrapers, a projectile point, and a large rock core from which flakes were struck.

42.   They loaded them on an ox cart and hauled them to the top of a nearby hill and burned them on a large flat rock.

43.   They stopped beneath a large rock that stuck five feet out from the mountain.

44.   When you hit a large rock, stop digging and remove it with a breaker bar.

45.   A large white rock stands to the left of the entrance, its fragile surface eaten away by carefully orchestrated erosion in the waters of Lake Tai near Suzhou.

46.   A man lost in the mountains of central Japan survived for a week resting under a large rock and eating tadpoles, according to a Japanese news report Monday.

47.   A year earlier, a group of teens killed an Australian black swan by dropping a large rock on the bird as it slept in its enclosure.

48.   Archaeologists believe the large rocks were dragged from nearby quarries with ropes woven from reeds.

49.   But on Thursday, workers discovered a jumble of large rocks lay in their path.

50.   Conservationists fear an oil spill would have a devastating effect on the large rock pools that teem with sea life along the coastline.