134 APPENDIX. 
determination, or the application of other tests, in order to establish 
the identity of this compound with phytosterin or analogous choles- 
terin-like principles. The fatty acids melted at 53—54°, 
The powdered fruits were then exhausted with ether, which 
dissolved out an alkaloid, having a slight numbing sensation on the 
tongue, and appearing to be cocaine, 
Absolute alcohol then removed cocatannic acid and an alkaloid ; and 
finally water extracted colouring and albuminous matters, and some- 
thing which reduced alkaline copper solution on boiling 
The percentage composition of the fruit as deducst from the 
examination may be arranged as follows :— 
Moisture lost at 100° C. after partial desiccation over 
s peer acid,, ose noe av see a 5°423 
Ash... me, 4°271 
Pidrclnibs hee patie Ponrid: 3 021 pir oes of 
glycerides of fatty acids, and 1°519 per cent. of im- 
pure phytosterin (?) with colouring matter...* ..,  4°540 
Ether extract, soluble in petroleum ether *232 per cent., 
soluble in water and containing cocaine 1] per cent,, 
soluble in absolute alcohol -069 per cent., soluble 
in ether but insoluble in petroleum ether, alcohol or 
water °029 per cent. *440 
Absolute alcohol extract cdiitahiing obodtanntl: aida na 
a trace of alkaloid wi vis ie B20 
Aque 
eas ce wwe we §=23 440 
. y HH. W arden, Pharm, Journ., July 5th, 189).) 
RUTACEZ, 
Oil of Lemon. 
V. Olivieri (Gazz, Chim., xvi., 318) found in oil of lemon, besides 
the limonene (Wallach), also another terpene C1°H*, boiling at 
170—170°5° C, (838—339° F.),the tetrabromide of which fuses at 
31° C. (88°F.), but the dihydro-chloride showing the characteristics 
-oflimonene. From the higher boiling portions the author has fur- 
thermore isolated a sesquiterpene C'*H?*, boiling at 240—242° 
= (464—468° I.), which increases in quantity with the age of . 
he oil, For detecting adulteration with turpentine, the author 
pa the use of the polarimeter. Lemon oil is levogyre 
