Genuine cedar wood from Cedrus Libani, Barr. (Pinus Cedrus, L., Abies Cedrus, Poir., Larix Cedrus, Mill.) yields upon distillation 1) about 3,5 p. c. of a lemon-yellow oil that possesses an agreeable balsamic odor, reminding at the same time of methyl heptenone and thujone. It revealed the following constants: d15o0,940 to 0,947; aD + 68 to 86°; nD20o 1,5125 to 1,5134; A. V. 0,5 to 1,5; E. V. 2 to 3,0; E. V. after acetylation 19,8; soluble in 5 to 6 vol. of 95 p. c. alcohol. It boils mainly between 270 and 290°. Distilled under 54 mm. pressure from an ordinary fractionating flask, the following amounts passed over: 30 p. c. between 270 and 275°, 40 p. c. between 275 and 280°, 14 p. c. between 280 and 285°, 6 p. c. between 285 and 290°, residue 10 p. c.

1) Report of Schimmel & Co. April 1911, 124.

2) Ibidem October 1897, 66.

3) Journ. Americ. chem. Soc. 28 (1906), 1198.

4) As revealed by a subsequent microscopic investigation, the oil described on p. 279 of the former edition of this work as Lebanon cedar oil, was distilled from a species of juniper.