Corallium, _Coral_, is a sort of petrified arboret, not growing on dry land, but among the mud of the sea, being of a red colour, and like stone. Its powers are decidedly desiccant and moderately astringent. It answers, therefore, with cases of hæmoptysis and dysentery. * * * * * COMMENTARY. The Coral of the ancients is the _Isis nobilis_, Pall.; the name Isis being borrowed from Pliny. (H. N. xiii, 52.) Pliny mentions, in another place, that corals, burnt and pulverised, and drunk in water, are useful in some pains of the bowels and bladder, and in calculus. He adds that they are also soporific. Corals were much used as amulets or phylacteries. (H. N. xxxii, 5.) See also Solinus (ii), and Geopon. (xv, 1.) Celsus ranks the corallium with those substances which burn: “Veratrum, album et nigrum, corallium, cantharides, pyrethrum, adurunt.” (v, 208.) This article does not occur in the Hippocratic treatises, nor in Galen’s work ‘On the Faculties of Simples.’ The latter, however, prescribes it for spitting of blood in another place. (De Comp. Med. sec. loc. vii.) Dioscorides and Serapion, likewise, recommend it as an astringent in hæmoptysis and in dysentery. It appears from the Royal Pharmacopœia of Moses Charras, that it was used for the cure of these complaints in his time. He prefers the red coral, and directs us to give it in the form of an impalpable powder. The red coral held a place in our English Dispensatory until a recent date. See Quincy (101.) It was much used in infantile convulsions. It is still admitted to be a good antacid. See Gray (Pharmacol. 146.) According to Dr. Ainslie, the Tamool practitioners prescribe it, when calcined, in cases of diabetes and bleeding piles. The Arabians place it among their astringents and cordials. (Mat. Ind. 52.) The sea-coralline is retained in the modern Greek Pharmacopœia, under the title of _Helminthochortos_, which, however, as is there stated, comprehends several species of the _Ceramium helminthochortum_, mixed up with ulvæ, confervæ, but especially red corallines. (77.) On the use of it by the Arabians, see the commentators on Mesue. (De Electariis, 89.) The Electarium de Gemmis, in which it occurs as an ingredient, is said to be most efficacious in cold affections of the brain, heart, stomach, liver, and womb; an excellent exhilarant and cordial; and restorative in palpitation of the heart, and in syncope. Κόρεις, Cimices, _Bugs_; these animals are of an acrid nature. Some write that when drunk with vinegar they eject leeches. * * * * *