The seeds of Chenopodium ambrosioides, L, which are closely related to C. ambrosioides, L., var. anthelminticum, are used by the people of Brazil as anthelmintic. According to Th. Peckolt1) they contain a volatile oil possessing a strong aromatic odor, and a bitter, burning taste. Sp. gr. 0,943.

1) H. Bruning, Zur Behandlung der Ascaridiasis. Medizinische Klinik 1906, No. 29. Additional literature: H. Bruning, Ztschr. f. exp. Patholog. u. Therap. :$ (1906), 564. - H. Bruning, Zentralbl. f. d. ges. Therapie 24 (1906), 659. - H. Bruning, Deutsche Medizinische Wochenschrift 1907, No. 11. - F. Thelen, Klinische Erfahrungen uber das amerikanische Wurmsamenol als Antiascaridiacum bei Kindern. Inaug. Dissert, Rostock 1907. - Munch, med. Wochenschr. 57 (1910), 1643. - H. Bruning, Arch. f. Schiffs- u. Tropenhygiene 14 (1910), 733. - W. Salant, Journ. of Pharmacology and experim. Therap. 2 (1911) 391; Abstract in Therap. Monatsh. 25 (1911), 498. - H. Bruning, Zeitschr. f. experiment. Pathologie u. Therapie 11 (1912), 154.

*) Journ. of Pharmacology and experimental Therapeutics 2 (1911), 391; Therap. Monatsh. 25 (1911), 498.

The leaves of this plant, which were official formerly as rib. Chenopodii ambrosioides seu Botryos americanae, yielded upon distillation 0,25 p.c. of an oil of a disagreeable, camphor-like, narcotic odor that reminded one of trimethylamine. Sp. gr. 0,901-).