This is too funny! I was looking for something else on the internet and found this "The naturally pigmented wools do not take artificial dyes well (Ryder 1969a,495)." This was in the book Prehistoric Textiles by E. J. W. Barber 1991.
So Ryder was the source for the misinformation in Mummies of Urumchi. Grace Fred and Grace Hatton Hawley Pa
