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"[Plin. Nat. 20.38.] - THE SEA-CABBAGE: ONE REMEDY.
Sea-cabbage is the most strongly purgative of all these plants. It is cooked, in consequence of its extreme pungency, with fat meat, and is extremely detrimental to the stomach.”
(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.)