Mr. BOYLE remarked, that two very able physicians of his acquaintance gave to a woman desperately sick of the iliac passion above a pound of crude quicksilver which remained several days in her body without producing any fatal symptom; and afterwards dissecting the dead corpse, they found, that part of her gut, where the excrement was stopped, gangrened; but the quicksilver lay all on a heap above it, and had not so much as discoloured the parts of the gut contiguous to it.