What is the tile bligh and sheep bone divination

Tile bligh is not burned tiles instead of tortoise shell on the fire burning, look at the shape of the crack on tiles, judging on the basis of good or ill luck.

Sheep bone is also to take this approach, is generally choose sheep tibia, burning with fire, look at the crack of grain to judge good or ill luck.Sheep bone bligh the divination method is often used in the ethnic minorities in the north.