Quinine London. It remained the antimalarial drug of choice until the 1940s, when other drugs took over. The form of quinine most effective in treating malaria was found by Charles Marie de La Condamine in 1737. In 1820, French researchers Pierre Joseph Pelletier and Joseph Bienaimé Caventou first isolated quinine from the bark of a tree in the genus "Cinchona" - probably "Cinchona officinalis" - and subsequently named the substance. The name was derived from the original Quechua (Inca) word for the cinchona tree bark, "quina" or "quina-quina", which means "bark of bark" or "holy bark". Prior to 1820, the bark
USS Cinchona (AN-12) the States 27 July, she conducted net operations at Long Beach, California, and out of Mare Island Naval Shipyard until 24 August 1946 when she sailed for Astoria, Oregon. "Cinchona" was placed out of commission in reserve 6 November 1946 at Vancouver, Washington. "Cinchona" received two battle stars for World War II service. The first was for her performance at Pearl Harbor while under attack by Japanese planes. The second was for her operating under dangerous conditions during the Mariana Islands operation. USS Cinchona (AN-12) USS "Cinchona" (AN-12/YN-7) was an "Aloe"-class net laying ship which was assigned to serve the