Upon the distillation of the root of Glycyrrhiza glabra, L. (family Leguminosae) H. Haensel1) obtained a small amount of volatile oil. From the Spanish root a yield of 0,03 p.c. and from the Russian root 0,035 p. c. were obtained. The oil from the Spanish root deviated the ray of polarized light to the left, that of the Russian oil to the right.