Alkaloid use of Ephedra and opium poppies. Also, coca leaves have been used by South American Indians since ancient times. Extracts from plants containing toxic alkaloids, such as aconitine and tubocurarine, were used since antiquity for poisoning arrows. Studies of alkaloids began in the 19th century. In 1804, the German chemist Friedrich Sertürner isolated from opium a "soporific principle" (), which he called "morphium" in honor of Morpheus, the Greek god of dreams; in German and some other Central-European languages, this is still the name of the drug. The term "morphine", used in English and French, was given by the French
Wells (name) Wells (name) Wells is a surname of English origin, but is occasionally used as a given name too. It derives from occupation, location, and topography. The occupational name (i.e. "Wellman") derives from the person responsible for a village's spring. The locational name (i.e. "Well") derives from the pre-7th century "waella" ("spring"). The topographical name (i.e. "Attewell") derives from living near a spring. The oldest public record is found in 1177 in the county of Norfolk. Variations of Wells include Well, Welman, Welles, Wellman and Wellsman. At the time of the British Census of 1881 Wells Surname at Forebears, its relative