"After three months, magnetic resonance imaging showed that the leg still has pockets of humidity," Ruhli said.
However, the leg already appeared like that of an ancient mummy, suggesting that not only time, but also natron cause a mummy to look the way it does.
"The leg is stiff, especially the feet area rather than the thigh area," Ruhli said.
As for the control leg, it failed to dehydrate and started to decompose after a week.
Unlike his U.S. colleagues, Ruhli does not plan to follow the natron dehydration with linen wrapping.
"Wrapping does not improve mummification, but preservation, which is not an issue for our experiment. Rather we possibly may re-soak the leg in water to see how much original morphology can be regained," Ruhli said.
Brier, who at the moment is working on a similar project with his mummies, found Ruhli's experiment very interesting.
"It is a very important project. Using the latest technologies for moment-by-moment analysis certainly adds to our knowledge on the ancient mummification process," Brier said.