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"[Plin. Nat. 27.2.] - ACONITE, OTHERWISE CALLED THELYPHONON, CAM- MARON, PARDALIANCHES, OR SCORPIO; FOUR REMEDIES.
Aconite has leaves like those of cyclaminos or of the cucumber, never more than four in number, slightly hairy, and rising from near the root. This root, which is of moderate size, resembles the sea-fish known as the "cammarus," a circumstance owing to which the plant has received the name of "cammaron" from some; while others, for the reason already mentioned, have called it "thelyphonon." The root is slightly curved, like a scorpion's tail, for which reason some persons have given it the name of "scorpio." Others, again, have preferred giving it the name of "myoctonon," from the fact that the odour of it kills mice at a considerable distance even.
This plant is found growing upon the naked rocks known as "aeonæ;" and hence it is, according to some authorities, that it is called "aconitum," there being not so much as dust even about it to conduce to its nutriment. Such is the reason given for its name by some: but according to others, it receives this appellation from the fact that it fatally exercises the same effects upon the body that the whetstone does upon the edge of iron, being no sooner employed than its effects are felt. ”
(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.)

"[Plin. Nat. 27.76.] - THE LIMEUM: ONE REMEDY.
Limeum is the name given by the Gauls to a plant, in a preparation of which, known to them as "deer's poison," they dip their arrows when hunting. To three modii of salivating mixture they put as much of the plant as is used for poisoning a single arrow; and a mess of it is passed down the throat, in cases where oxen are suffering from disease, due care being taken to keep them fastened to the manger till they have been purged, as they are generally rendered frantic by the dose. In case perspiration supervenes, they are drenched all over with cold water."
(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.)