— 40 — 
vapour, and the ketone isolated from the distillate once more had been 
brought together with semicarbazide, we obtained a solid compound 
melting at 135 to 136°. After recrystallisation the melting point rose 
to 136 to 137°. An analysis proved that the body was the semi- 
carbazone of methyl heptenone. 
0^1389 g of the subst. yielded 0,1169 g and 0,3014 g CO2. 
Found: Calculated for C^H^^OgN: 
C = 59,18 per cent C = 59,01 per cent 
H= 9.35 .... H= 9,29 „ 
The last runnings (310 grams from 3 kilos lemon oil) serving for the 
detection of terpineol, were treated in the same manner for removing 
the aldehyde with bisulphite. The portion of the oil not reacting 
with it was washed and rectified in vacuo; it distilled at 9 mm 
pressure between 60 and 120°. After repeating the distillation in 
vacuo, we were able to isolate a fraction boiling at 86 to 100 
(7 to 8 mm pressure), which had clearly the odour of terpineol, and 
of which the bulk at ordinary pressure passed over at 215 to 225°, 
and was collected in three portions: 
I. 215 — 218°, 2. 218 — 221^, 3. 221 — 225°. 
Not one of these fractions congealed in the cold upon introduction 
of a terpineol crystal. 
Fraction 218 — 221°: Spec, gravity 0,9150, opt. rotation — 2^55'; 
221—225°: „ „ 0,9190, „ „ —3^47'. 
With phen}'l isocyanate, a very small quantity of a phenyl ure- 
thane melting at about 105° was obtained from both fractions; after 
recrystallisation this had the melting point iio'^. A phenyl urethane 
of this melting point, however, belongs to the terpineol melting at 35°, 
or zl'-terpene-8-oL A mixture of the urethane of lemon oil terpineol 
with the terpineol of the melting point 35^, produced for purposes 
of comparison, melted at 110°. This proves the presence of this 
terpineol in oil of lemon. 
Oil of Orange, sweet, could be bought in April at a low 
price; in the course of the summer it slowly advanced fully 10 per cent. 
The old stocks are completely exhausted. 
The new crop of oranges will give a smaller result than last 
year's crop, so that under normal conditions a smaller quantity of 
oil than usual may be expected lor the coming season. 
Sellers of new oil, December delivery, are therefore holding back, 
and up to now only a few isolated transactions have taken place. 
Eucalyptus Oil. The Algerian distillers have again the upper 
hand in the distillate of the Globulus species, and they supply faultless 
