. \CHs ; a : 
|CH: CHa 
\Ketonie aad. x peed _Dicarboxylic acid. 
~ 
me peice crude eerie and the eculeie lig drosion ok showed constantly a higher 
- specific. sravity than the pure alcohol purified by means of. its benzoate, the crude 
__-elemol fraction seems to contain a fait amount. of impurities. Probably it is the case 
comeing. perhaps. a butenyl group ‘instead of allyl, and the methoxyl | groups in 
. different position. 2 i 
a a On a synthesis of elemicin, “see page 138 of this Report. 
ed ‘ 
a 
— 
a. ; 
q Bea _ Essential Oils, Sicilian and Calabrian. 
pa } 
Oil of Bergamot. A ihe pera able kind of bergamot oil was neeenity sub-: 
G miitted to our laboratories. for ie guile It originated from a small Dresden firm, chiefly 
s __ engaged in the manufacture of “war” beverages: and food substitutes and who sold 
the product with the guarantee that it contained 36 per cent. of esters. The buyer, 
3 x ~ however, having found out at once that he had been cheated, complained, but received ~ 
a “no answer at all, a fact which does not speak in favour of the business methods of 
oy _ the firm in question. In consequence, the buyer was induced to ask for our opinion. 
F * The sample was so small that it permitted only of determining a few of the 
~ constants, but this was quite sufficient to see that the oil had either been grossly _ 
= "adulterated or was an absolute failure of artificial substitute. The constants found — 
were so abnormal that, to judge by them, nobody could possibly. have guessed that 
Bt the product was. meant for oil of ‘bergamot: di50 0.9480, % — 16°, acid. v. 4.7, ester 
e v. 136.3, whereas bergamot oil has a specific gravity of 0.881 to 0.886 and deviates from © 
oo 8 to 22° to the right. The smell was likewise quite strange and pointed to the presence 
of an anthranilate, a body that does not occur in genuine bergamot oil. Owing to the 
small quantity available, it was impossible to ascertain whether linalyl acetate, the — 
typical ester of bergamot oil, was present at all, but that much is certain, that the ester v. 
Be found and which would correspond to 47.7 per cent. (!) of linaly! acetate, is no criterion 
~ for the actual content of it, as the esters present were, totally or in patty ofa different nature. 
a ee i . 
O11 of Lemon. Guia to ie acini: of lemon and. orange oils, it seems that 
4 “old stocks are now being thought of, but one generally makes the disappointing 
_ discovery that the oils have meanwhile become unfit for .use in ‘consequence of 
_ fesinification. An astonishing number of such oils, partly offered to us, partly only 
_ submitted for inspection, have found their way to our laboratories. They all showed 
. a high specific gravity, an increased residue on evaporation and a rotatory power, 
4 _ reduced in proportion with the rate of resinification. Some of the samples betrayed 
of a liquid isomeride of. elemicin in elemi oil, or of another ‘similar phenol ether — 
yo 
f : 
pl te 
