— 36 — % 



n D 1,4882. It differs in its physical properties from the dihydrocedrene 

 which was prepared by reducing cedrene with platinum and hydrogen, 

 the latter possessing the following constants: b. p. 122 to 123° (10 mm.), 

 dgoo 0,9204, « D 2oo+2°, n D20O 1,4929. Cedrene resulted when formic acid 

 was allowed to react upon pseudo - cedrol , and was identified by the 

 preparation of the cedrene keto acid and of cedrene dicarboxylic acid. 

 Cedrol and pseudo-cedrol are chemically identical, but physically they 

 are isomerides. 



On the identity of natural and artificial cedrene, see p. 150. 



Celery Oil. In the course of the summer we have several times 

 been under the necessity of raising our prices, because celery seed was 

 unobtainable and we are now again compelled to declare a fresh advance, 

 in order to bring our quotations in harmony with the fact that the crop 

 of celery seed in France has once again been a failure. 



Our celery oil from leaves of our own growing continues to be 

 extremely popular, and has become practically indispensable in the 

 manufacture of soup-seasonings, sauces, condiments and preserves. 



An oil 1 ) distilled in Algeria from wild celery -plants was found to 

 possess the following characters: d 15 o 0,8467, a D + 69°18', acid v. 0, 

 sap. v. 16,7, ester v. after acet. 20,9. It gave a cloudy solution in 15 vols. 

 85 p. c. alcohol; dissolved with faint opalescence in 4,5 vols. 90 p. c. alcohol, 

 and gave a clear solution with any proportion of 95 p. c. alcohol. 



Chamomile Oil, German. Having been successful in acquiring a 

 few chance-parcels of distilling material of good quality, we have lately 

 been able to make a corresponding reduction in our quotations. Whether 

 it will be possible to maintain the present reduced price for any length 

 of time is, however, doubtful in view of the very sustained demand for 

 our distillate. 



Chamomile Oil, Roman. As we are only able to grow Roman 

 chamomiles on a modest scale on our Miltitz plantations, we have remained 

 mainly dependent upon the English producing districts. In that country 

 all the stocks were exhausted long ago and what can only be describe 

 as fancy prices had to be paid for the odds and ends which it was possib 

 to scrape together from second-hand holders. With regard to the new 

 crop the report goes that although the output of flowers has been rather 

 in excess of that of 1911, the oil-yield has left somewhat to be desired 

 and that there can be no question of any reduction in prices. There are 

 only a few growers of chamomiles in the Mitcham district, and a con- 

 siderable portion of their production was so to speak taken out of their 



l ) Berichte von Boure-Bertrand Fils, April 1912, 30. 



