APPENDIX. 117 



floated on the water stratum below the ether- The ether \vas 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 iiTegularly- shaped plates and amoi-phous particles. The yellow 

 varnish -like residue was easily soluble in proof spirit, but neither 

 this portion nor the chalky deposit afforded any reaction with alkar 

 loidal reagents. The chalky deposit treated with concentrated 

 H^SO* afforded a yellow solution in the cold, changing to pinkish on 

 standing for some time, but on heating the pink colour was developed 

 rapidly. Nitric acid, no reaction. Frohde's reagent, greenish in 

 the cold, passing to blue on warming. Feme chloride, no reaction 

 Heated with dilute aqueous H^SO* and the solution neutralised 

 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 

 chalky deposit, by the action of proof spirit, when injected into a 

 cat's stomach caused the animal to vomit once a small quantity of 

 frothing liquid ; one formed stool was also passed, but no other symp. 

 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 

 tated with chloroform. The extractive was yellowish -brown, with 

 an odour like that of gum benzoin, and amounted to -Oe* 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 alcohohc extract 

 was finally agitated with amylic alcohol. The extract amounted to 

 1-582 per cent., and formed a transparent, soft, viscid residue of 



