Úrsula on the other hand, held a bad memory of that visit, for she had entered the room just

Úrsula on the other hand, held a bad memory of that visit, for she had entered the room just as Melquíades had carelessly broken a flask of bichloride of mercury.
“It’s the smell of the devil,” she said.
“Not at all,” Melquíades corrected her. “It has been proven that the devil has sulphuric properties and this is just a little corrosive sublimate.”

Gabriel García Márquez: One Hundred Years of Solitude
Gastón Betelli: Melquíades en sus postrimerías