The Rhizoma Zedoariae rotundae of the apothecary shops was formerly obtained from Kaempferia rotunda, L. (family Zingiberaceae). Upon distillation the root yields 0,2 p.c. of an oil3) of a light yellow color and an unpleasant odor which at first reminds one of camphor, later of tarragon oil. The specific gravity of the fresh oil fluctuates between 0,886 and 0,8943) at 26°. An oil which apparently was old had a specific gravity of 0,9454) at 15° and aD + 13°4' to 14°. When distilled, one-half distilled below 200°, the other half mostly at 240° 3). The oil contains cineol4).