APPENDIX. 117 
floated on the water stratum below the ether. The ether was sepa- 
rated and allowed to evaporate spontaneously, the extract amounte 
to -048 per cent. ; it formed a yellow transparent varnish on the sides 
of the capsule, while at the bottom it was white, chalky, and indis- 
tinctly crystalline; odour, aromatic. The chalky deposit consisted of 
some irregularly-shaped plates and amorphous particles. The yellow 
yarnish-like residue was easily soluble in proof spirit, but neither 
this portion nor the chalky deposit afforded any reaction with alka- 
eae eras The chalky deposit treated with concentrated 
orded a yellow solution in the cold, changing to pinkish on 
enn for some time, but on heating the pink colour was developed 
rapi Nitric acid, no reaction. Froéhde’s reagent, greeni 
the a passing to blue on warming. Ferric chloride, no reaction 
Heated with dilute aqueous H*SO* and the solution neut 
it reduced an alkaline copper solution on boiling. When agitated 
with water, considerable frothing was noted. A small amount in- 
jected, mixed with water, into a cat’s stomach induced no symptoms 
When applied to a cat’s eye, there was no change in the size of the 
pupil observed. The yellow varnish-like deposit separated from the 
frothing liquid ; one formed stool was also passed, but no other s 
toms were noted, The varnish-like residue, when applied to the tip 
of the tongue, produced a slight sensation of tingling or numbness, 
which lasted for a short period, and could not be mistaken for the 
symptoms induced by aconitine. 
The alkaline aqueous solution of the alcoholic extract was next 
agitated with chloroform. The extractive was yellowish-brown, with 
an odour like that of gum benzoin, and amounted to -064 per cent. 
In cold proof spirit it was partly soluble, the solution on spontaneous 
evaporation affording a residue which contained a few microscopic 
plates. The residue insoluble in cold proof spirit was pale yellow 
and soluble in boiling proof spirit. On spontaneous evaporation a 
white crystalline deposit was obtained, consisting of bundles of rods 
and a few plates, The residue frothed when agitated with water, 
and when treated with concentrated sulphuric acid yielded a rose 
coloration. The alkaline aqueous solution of the alcoholic extract 
was finally agitated with amylic alcohol. The extract ounted 
1:582 per cent., and formed a transparent, soft, viscid residue of 
