Has Feedback any plans for a series of examples of the “doctrine of signatures”, on the lines of liverwort being an example of a plant that resembles the body part it is supposed to have the power to ...

Among the documents are the notes of a 17th-century physician, who discusses his use of the doctrine of signatures to determine which medicinal plants to use for which ailments. "Lungwort (Pulmonaria) ...

It’s hard to imagine being the first human being to look at a plant like, say, a stinging nettle and think, “I probably shouldn’t eat this, on account of the general agony it would cause me. But what ...