Cinchona in quinology to examine the contents of these components in assays. The yields of quinine in the cultivated trees were low and it took a while to develop sustainable methods to extract bark. In the meantime Charles Ledger and his native assistant Manuel collected another species from Bolivia. Manuel was caught and beaten by Bolivian officials leading to his death but Ledger obtained seeds of high quality which were offered to the British who were uninterested, leading to the rest being sold to the Dutch. The Dutch saw its value and multiplied the stock. The species later named as "Cinchona
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