According to S. Hals and ). F. Gram6), the seeds of Eruca sativa, Lam., when treated with water and subsequently distilled, yield a volatile oil which contains nitrogen and sulphur and which differs from the mustard oils of the rape seeds.

1) Liebig's Annalen 47 (1843), 153.

-) Accad. Line. 1892; Report of Schimmel & Co. April 1894, 36.

3) Einhof, Neues Berlinisches Jahrbuch 5 (1807), 365.

4) Liebig's Annalen 52 (1844), 52.

5) Ibidem 66 (1846), 38.

°) Landw.Vers. Stat. 70 (1909), 307; Chem. Zentralbl. 1909, II. 138.

The formation of the oil is attributed to enzyme action, since it is not formed when the enzyme is destroyed with boiling water.