Funnily enough, my mother sent me a book after she read a previous piece of mine on perimenopause. That's where there are constant references to "crone" and I am not completely taken with it due to it being a little dated, but it does have a lot of useful advice around natural remedies. It's called Menopausal Years, The Wise Woman Way by Susan S. Weed (unfortunate surname, but hey). I will let you know if I find anything else good.