Nagy's report of an optical rotation of-0.023 degrees to -0.084 degrees in the Orgueil meteorite has not been confirmed. The highest rotation found in several fatty-acid and hydrocarbon fractions isolated from the meteorite was -0.002 degrees , less than that of optically inactive controls. The "rotations" observed by Nagy may have been caused by scattered depolarized light from colloidal parti...

active principle; and said that it possessed much narcotic activity. No subsequent observers, however, have been able to obtain, by the process employed by Smith, any body which fully answers to the description of Smith's ' Cannabin. ' In 1S57 Personnel) resolved the volatile oil, obtained by distillation of ^e plant, with water, into Cannabene (C18 H?0) a light hydrocarbon, and a Solid crystal...