160 | H. G. SMITH, 
The amount of oil obtained from one 400 gallon square 
iron tank was 17 pounds; the weight of material distilled 
was not stated, but was probably about 900 to 1000 pounds, 
giving a yield of about 1°7 to 2 per cent.. The crude oil 
was almost colourless, very mobile, and contained a con- 
siderable amount of cineol. It had specific gravity at 
15° = 0°8935; rotation ay — 12°8°; refractive index at 20° 
= 1°4690; acid number 1°1; saponification number 4°59; 
saponification number of esterised oil 21°2.  Cineol deter- 
mined by the resorcinol method in the portion boiling below 
190°, and calculated for the crude oil, was 43°7 per cent. 
On rectifying under atmospheric pressure only a few 
drops distilled below 165° (uncor.); between 165—170 30 
per cent. distilled; between 170—190° 62 per cent. came 
over, and between 190— 220° 2°5 per cent, distilled. The 
first two fractions gave the following results :— 
Sp. gr. at 15° Rot. ap _ Ref. ind. at 20° 
Kirst fraction 0°8825 —13°5° 1°4661 
Second ,, 0°8922 —13°2° 1°4685 
The third fraction was added to the residue and the saponi- 
fication number determined, this was 15°9, indicating the 
ester to be high boiling. 
Terpenes.—It was found that the cineol phosphate com- 
pound could be separated from the terpene portion. The 
method adopted was to slowly treat the rectified oil ina 
beaker with phosphoric acid until judged to be in excess. 
The pasty mixture was then warmed until the greater 
portion of the cineol phosphate separated, the liquid portion 
poured off and the beaker containing it placed in ice water 
until the remaining cineol phosphate crystallised out. The 
remaining liquid was then well shaken with a 50 per cent. 
by weight aqueous solution of resorcinol, in order to remove 
any remaining cineol or alcoholic bodies that might be 
present; the terpenes were then well washed, dried and 
filtered. p 

