MELIACE. 329 
allowed to stand, and the clear yellow alcoholic solution decanted 
from the insoluble oil; the alcoholic solution thus obtained was 
evaporated to dryness, mixed with ammonia, and agitated with 
ether. The ether solution was marked A. The aqueous solution, 
after separation of the ether, was mixed with dilute hydrochloric 
acid, and again agitated with ether. The ether separated of a 
- yellow colour, and below it some flocks of a dirty yellow hue, 
which refused to dissolve after prolonged agitation. The ether 
solution was marked B. From the aqueous solution the insoluble 
flocks were separated by filtration and marked C, The filtrate 
was not further examined. 
Examination of ether solutton A.—tThe solution was agitated 
- with dilute hydrochloric acid, to remove any principles of an- 
alkaloidal nature. ‘The ether was then separated and evapo- 
rated ; the resulting extract was pale amber in colour, viscid 
at first, very bitter, and had a marked odour of the oil. It con- 
tained sulphur. It was easily soluble in 60 per cent. alcohol, 
ether, chloroform, &c., but insoluble in acids, or in caustic 
alkaline solutions. It had the properties of a neutral resin. 
The hydrochloric acid solution was of a yellow colour; it 
was mixed with ammonia, which occasioned a white precipitate, 
and agitated with ether. The ethereal solution on evaporation 
left a yellow residue, not readily soluble in dilute acids. The 
dilute sulphuric acid solution was bitter, and yieldeda precipitate 
with alkaline carbonates and hydrates, phosphomolybdic, and 
Picric acids, potassio-mercuric iodide, chloride of gold and per- 
chloride of platinum. ‘This principle had therefore the proper- 
: ties of an alkaloid. 
; Ether solution B.—On evaporating the ether solution B, a 
dark reddish bitter extract was obtained, soluble in alkaline 
solutions, and re-precipitated in yellowish flocks by dilute acids. 
It had the properties of an acid resin ; ee 
Precipitate C._—The precipitate was well washed, and dis- - 
solyed in alcohol; on evaporation a brittle darkish residue was 
obtained, soluble in alkaline solutions, re-precipitated in yellow- 
ish flocks by acids, soluble with very great difficulty in ether, 
