"Scientific and. other Notes. on Essential Oils. 
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ou of Agonis | flexuosa. When giving details on the. prospects of producing 
is Setinda: Lindl. ne 0. en a low tree pecinine, abundantly in Soil 
estern Australia. The oil resembles strongly . eucalyptus oil and contains 62 to. 
ae per cent. of cineole, besides. -cymene, . pinene, and traces of alcohols, esters, and — 
henols, but no aldehydes, free acids, nor phellandrene. The oil-yield amounted to 
0. 8 tol. 0 percent. Owing to the abundant ie it ‘should ee osy to collect “ones 
tillation material from this. tree. 
we ; / 
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“Almond Oil, bitter. To pile by | the Sines. submitted to’ our (poratonee 
Be iecls “especially: of late, the trade in this article seems tobe in a disgraceful 
te . It. not only happens that ordinary, crude benzaldehyde, betrayed at once by its 
ong chlorine reaction, is sold as genuine oil, but there are people who do not. 
eas in another instance crude nitrobenzene had been supplied as “Ol. amygdalarum. 
um sine acido hydrocyanico”’. As nitrobenzene smells somewhat like bitter almonds, © 
i aaived from a case “of poisoning in Nat where a woman eet a Suen of a 
oT E cent. nitrobenzene solution for Bayou a ae ua partaking of aes caused 
tory Bie. colouring of her Boe 
hale added. page Whee teres Wav | Ais a 
~ Doubtless, the cyanogenic glucosides belong ie the Boilies which, from the nites 
ysiological point of view, must be considered most interesting, since they yield 
the highly poisonous prussic acid. The presence of this acid has been. proved in. 
numerous plant destillates; some glucosides are the parent substances of benzaldehyde, 
ich forms the main constituent of some essential oils, such as bitter almond and 
ty laurel oils. Some of these bodies, hitherto inaccessible by means of synthesis, 
: been recently prepared artificially by E. Fischer and Mz. Bergmann’): — mandelo- 
le glucoside, sambunigrine, and others. 
ee ethylmandelate with acetobromoglucose and silver oxide, there results, in fairly 
od yields, the easiest of f tetracetyl- -d-glucosido mandelic acid. Pers eK is evi- 
. Afr. Me of Industrice, Neceniber. 1917; pee ee 9 919), 59. — *) Pharm. Ztg. 68 (1918), 
REA TAT, GOATS Ba Oster) S46 Me Phy Dasesks be Bi th 
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2. 
: buyer often does not notice the fraud, which | is all” the worse, as oil of bitter s 
The process of synthesis carried — out was by 1 no means simple. On shaking in- 
| | shrink from replacing it by the highly poisonous nitrobenzene. In one case, ’: ie 
ter almond oil, 14, pure”, was composed of even parts of alcohol and nitrobenzene, . 
/For oS Reatie nope ‘we beg to mention one more sample of so-called bitter yes 
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