The French druggist Pierre Pomet devotes a section of his comprehensive history of drugs to bezoars, explaining that the stones appear in the stomachs of cows, apes, and goats. Pomet's goat leaps over a bezoar, sliced open like a geode to reveal its efficacious core. Pomet argues that this bezoar, produced in the belly of a high-leaping wild goat common in the East Indies, would promote sweat and drive away malignant humors. We'd wager Monsieur Pomet, apothecary to Louis XIV, could give even Snape a run for his wand in a battle of the Potion-Masters.