But now we have learnt by patient chemical research that the Wild Carrot possesses a particular volatile oil, which promotes copious expectoration for the relief of asthmatic cough; that the Nettle is endowed in its stinging hairs with "formic acid," which avails to arrest bleeding; that Boxwood yields "buxine," a specific stimulant to those nerves of supply which command the hair bulbs; that Goosegrass or clivers is of astringent benefit in cancer, because of its "tannic," "citric," and "rubichloric acids"; and that the Spider's Web is of real curative value in ague, because it affords an albuminous principle "allied to and isomeric with quinine."
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie