For weeks it was soaked in a solution of natron and then it was filled with pitch.
The natron also dissolves the flesh, so that nothing remains but the skin and bones.
This being done, they salt the body, keeping it in natron seventy days, to which period they are strictly confined.
Not very good water, I'm afraid, but you soon get accustomed to natron.
The natron or soda, which is procured in the neighbourhood, is found alone in the ground.
The corpse was filled with spices, drenched in a bath of natron, wound with bandages and thus transformed into a mummy.
Lime, the wife of natron, produces marble, dissolved and saturated with acid is crystallized into gypsum.
Once, while staying with Kondratiev at Nizy, the local doctor had recommended him natron water.
It was known to the ancients, at a very early period, under the denomination of natron.
Four of the oldest monasteries in the world still survive in the natron Valley.