Carboneum oxygenisatum, Carbonous oxide, CO. This gas may be obtained, in a state of purity, by the action of Sulphuric acid upon Ferrocyanide of Potassium; it is soluble in water (about two per cent. at ordinary temperatures). Authorities. [But two of the authorities selected refer to the action of the chemically pure gas, viz., Nos 10 and 32 , the others refer to the effects of gas from smouldering coal, a mixture of the Carbonous oxide, and Carbonic dioxide, with some vapors of volatile carbon compounds; the effect of the gas is due to the very poisonous property of the carbonous oxide. The attention of therapeutists is particularly called to the peculiar headache, the trismus, and the hemiplegia caused by this substance] 1 , Meglin, Journ. de Méd., 1786 (Frank's Mag., 1, 765), five cases of poisoning from coals in an open vessel in a room; 2 , Berthold, Hencke Zeit., 1830 (Fr. Mag., 3, 224), several cases, same cause as the last; 3 , Schroeder, Rust's Mag., 1830 (Fr. Mag., 1, 553), several cases, same as last; 4 , Wagner, Hufeland's Journ., 1836; 5 , Hergenrother, Med. Corr. Bl., Bayer, 1841 (Schmidt's Jahrbucher, 34, p. 26); 6 , Mark, Bayer. Corr. Bl., 1843 (S. J. Suppl., Bd. 4); 7 , Demeures, Bull. d. l. Soc., homoeop. de Paris, 1849; 8 , Buchner, All. Hom. Zeit., 28, 158, 1850; 9 , Piorry, Gaz. des Hôp., 1851 (S. J., 70, 175); 10 , Chenot, a chemist, L'Union, 1850, poisoning, from inhaling the pure gas; 11 , Gaz. des Hôp., 1857, poisoning of three women; 12 , Jachimowicz, Zeit. f. Ver. Oest., 1857; 13 , Ozanam, L'Union, 1857 (S. J., 94, p. 26); 14 , Freund, Om. Schr. f. Geburt., 1858 (S. J., 104, 190), poisoning of a woman seven months pregnant; 15 , Siebenhaar and Lehmann, S. J., 101, p. 274, 1858; 16 , Thompson, Edinb. Med. Journ., 1860; 17 , Hasse, Pr. Ver. Zeit. 1859 (S. J., 105, 41), poisoning of five soldiers; 18 , Brit. Med. Journ., 1862; 19 , Oest. Zeit., 1862 (All. Hom. Zeit., M. B., 7, 34); 20 , Leudet, Virch. Archiv. (S. J., 127, 24), 1865; 21 , Klebs, Virchow's Archiv., 1865 (S. J., 127, 17); 22 , Leudet, as last; 23 , Pirain, S. J., 127, p. 24, 1865; 24 , Huber, All. Milit. Zeit., 1865 (S. J., 127, p. 162); 25 , Gull, Lond. Lancet, 1866 (S. J., 133, p. 33); 26 , Faure (S. J., 92, 220), Archiv. Gen., 1856, general treatise on asphyxia; 27 , Maclagan, Edin. Med. Joun., 1868, three cases; 28 , Linas, Gaz. Méd. de Paris, 1869; 29 , Sulzer, All. Hom. Zeit., 1873 (Hahn. Month., 8, 519); 30 , Hirt, in Ziemssen, Handbuch der Spec. Path. and Therap., Band 1, general statement; 31 , Martin, Casper's Vjhschft., 25, 197, several cases; 32 , Prof. Leeds, Phil. Med. Times, 1870, inhaled about a gill of the pure gas.