[15] Among the plants that seem to be most commonly implicated in the poisoning of stock are the larkspur (Delphinium. U.S. Dept. of Agric., Bull. 365, September 8, 1916), the water hemlock (Cicuta maculata) and others of the same genus, the lupines (U.S. Dept. of Agric., Bull. 405, 1916), some of the laurels (Kalmia), and the Death Camas or Zygadenus (U.S. Dept. of Agric., Bull. 125, 1915). The famous loco-weed of the western United States (U.S. Dept. of Agric., Bull. 112, 1909) is less certainly to be held responsible for all the ills ascribed to it (H. T. Marshall, Johns Hopkins Hosp. Bull., XXV [1914], 234).
[16] Chesnut, U.S. Dept. of Agric., Div. of Botany, Bull. 20, 1898, p. 17.
[17] Ibid., p. 28.
[18] Ibid., p. 45. The seeds of the castor-oil bean, which contain a very powerful poison (ricin) allied to the bacterial toxins, have been known to cause the death of children who ate the seeds given them to play with.
[19] Mayer, Deutsche Viertelj. f. öffentl. Ges., XLV (1913), 12.
[20] Cf. an instance of palmolin poisoning, Centralbl. f. Bakt., I, Ref., LXII (1914), 210.
[21] Weekly Bull., N.Y. Dept. of Health, September 16, 1916.
[22] Seventy-three species of mushrooms known or suspected to be poisonous are enumerated in a bulletin of the United States Department of Agriculture, Patterson and Charles ("Mushrooms and Other Common Fungi," Bull. 175, 1915). This bulletin contains descriptions and excellent illustrations of many edible and of the commoner poisonous species.
[23] Used in some places as a fly poison.
[24] Ford, Science, XXX (1909), 97.