"Actually, it appears that some of the components are natural and some are wizard-made. Once we get the items identified, I think it would be quite helpful to have Neville help with the possible ramifications of the plant-based components. Not only their separate effects, but the effect of some plants are quite different when mixed."
He handed Hermione a scrap of parchment with two columns of writing, one titled alkaloids and one titled ionic salts. "This is what I've determined so far."