416 APOCYNACEM, 
a trace of manganese, On analysis the following res 
obtained :— 
Petroleum ether extract, -64 per cent. 
ther 46 
3? 3 
Alcoholie * SOS0. potas 
Aqueous 2 11°38 
The petroleum ether extract was oily, yellow, and pop 
an odour like that of a mixture of cedar and musk, On f 
ing arborescent crystals separated; in alcohol the 
was partly soluble with acid reaction; the insoluble ‘re 
was oily and contained a trace of a wax. The extract affor 
ed marked indications of the presence of an alkaloi 
principle. 
33 32 
The ether extract was hard and had the same odour 
petroleum ether extract, but in a less marked degree. Tt 
ed with water a sightly bitter solution was obtained, 
The alcoholic extract was brittle, volomae bes 
intensely bitter. A solution in alcohol exhibited a very © 
greenish fluorescence. In cold water the extract was 
soluble, with slight fluorescence, and very bitter: | 
gave no colour reaction. The alcoholic peta: 
with dilute sulphuric acid and the turbid aci 
ed with chloroform: after separation of the 
liquid was rendered alkaline with ammonia, 
first with chloroform ether, and finally with amy 
The three extracts exhibited fluorescence when disso 
alcohol, but the appearance was most marked in that < 
by chloroform acting on the acid solution. The chi 
extract — a yellowish granular mass on 
which was non- 1e: in taste the extract 
it. 
