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) USS Cinchona (AN-12) USS "Cinchona" (AN-12/YN-7) was an "Aloe"-class net laying ship which was assigned to serve the U.S. Navy during World War II with her protective anti-submarine nets. "Cinchona" (YN-7) was launched 2 July 1941 by Commercial Iron Works, Portland, Oregon; sponsored by Mrs. W. Casey; outfitted by Puget Sound Navy Yard; and placed in service 15 August 1941, Lieutenant H. H. Breed, USNR, in charge. Assigned to the 14th Naval District, she arrived at Pearl Harbor 17 October where she took up duty in net repair and replacement, salvage of gear lost or adrift, and maintenance of net