— 20 — 



after acetylation 99,1, sol. in one-half its vol. and more of 80°/ alcohol. 

 Paraffin separates out from the solution when diluted. 



Andropogon oils, also see Cymbopogon oils, p. 58. 



Angelica Oils. The hopes of consumers that oil from angelica root 

 would again be avaibable at the old prices have not been realised to 

 their full extent, for on the one hand the demand after the close of the 

 distilling in the late autumn of 1910 was so brisk that most manufacturers 

 disposed of their oil very rapidly, and on the other hand the yield of oil 

 from the root produced in Thuringia, which forms the principal source of 

 supply for manufacturing, left a great deal to be desired. The fact, which 

 has already been reported, that the young plants raised from last year's 

 sowing are in a rather poor condition further contributed to reduce the 

 anxiety to sell, as it is thought that in all probability only a moderate 

 crop can be looked for in the coming autumn. It is well known that in 

 this article we occupy a specially favoured position, inasmuch as we chiefly 

 work up root of our own growing, which fortunately, as a result of the 

 rational manner in which our fields are tilled, has given a very satis- 

 factory result. We intend in the present year to continue to give special 

 attention to this branch of our industry. The price for oil from angelica 

 root during the last few months has remained unchanged at about cM 100. — 

 per kilo. We have also distilled a considerable quantity of angelica seed 

 oil from seed raised by ourselves, but as a result of high prices it would 

 appear that the use of this oil has in many quarters been abandoned. 



The favourable condition of our own angelica fields at Miltitz gave 

 us an opportunity last year of again distilling a considerable quantity of 

 oil from the herb in addition to the well-known oils from the root and 

 seed 1 ). We were thus able to convince ourselves again that the essential 

 oil contained in the leaves of the plant is but very littly different from 

 the root-oil. We quote below the constants of the various oils as deter- 

 mined by us, thus making a further contribution to the knowledge of the 

 angelica-oils. 



Oil from 



diso 



a D 



HD20O 



Acid 

 V. 



Ester 

 V. 



Solub. in 90°/o alcohol 



Leaves (Sept.) 



0,8550 



+ 28° 2' 



1,47782 



0,5 



17,6 



In 6 vol., with opalescence 



(Oct.) 



0,8697 



-j-22° 8' 



1,48044 



1,3 



22,6 



In 5 vol., with opalescence 



; (Oct.) 



0,8767 



+ 2o°ir- 



1,48316 



1,6 



21,1 



In 2,5 vol. a. m. 



Root 



0,8733 



4- 28° 23' 



1,48083 



2,5 



25,9 



In 3 vol. a. m. 



Seed 



0,8623 



-j-12° 12' 



1,48681 



U 



18,1 



In 6 vol., with opalescence 



x ) Comp. Gildemeister and Hoffmann, "The Volatile Oils", 1 th Ed., p. 573. 



