Probably the widest field is still in the purification of iron and steel.
A dry method of purification consists in a liquation on a hearth of peculiar construction, which occasions the separation of the unreduced bismuth sulphide and the bulk of the other impurities.
Moreover, under piaculum are confused purification, propitiations and expiations; Smith's contention that purifications, whose magical character he recognizes but interprets as late, are not sacrificial, is far from conclusive.
In like manner in the purification of lepers two birds were used; the throat of one was cut, the living bird dipped in the blood mingled with water and the leper sprinkled; then the bird was set free to carry away the leprosy.
The two friends by their united force succeed in killing the bull, and then after performing certain votive and purification rites return to Erech, where they are hailed with joy In this adventure it is clearly Eabani who is artificially introduced in order to maintain the association with Gilgamesh.