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"[Plin. Nat. 27.46.] - THE COCCUS CNIDIUS, OR GRAIN OF CNIDOS: TWO REMEDIES.
The Cnidian grain has just the colour of the kermes berry. It is larger than a peppercorn, and has very heating properties: hence it is that when used, it is taken in crumb of bread, that it may not burn the throat in passing downwards. It is a sovereign remedy for hemlock, and arrests looseness of the bowels. "
(The Natural History. Pliny the Elder. John Bostock, M.D., F.R.S. H.T. Riley, Esq., B.A. London. Taylor and Francis, Red Lion Court, Fleet Street. 1855.)