64 EFFECTS OF 



spinal nerves supplying the upper extremity, 

 just before they unite to form the axillary plexus. 

 I not only divided every nervous filament, how- 

 ever small, which I could detect, but every 

 portion of cellular membrane in the axilla, so 

 that the artery and vein were left entirely in- 

 sulated. I then made two wounds in the fore- 

 arm, and inserted into them some of the woorara 

 formed into a paste. Fourteen minutes after 

 the poison was applied, the hind legs became 

 paralytic, and in 10 minutes more the animal 

 died, with symptoms precisely similar to those 

 which took place in the former experiments with 

 the same poison, the heart continuing to act 

 after apparent death. On dissection, the nerves 

 of the upper extremity were very carefully ex- 

 amined, but not the smallest filament could be 

 found undivided. 



I made the following experiment to ascertain 

 whether the woorara passes into the circulation 

 through the lymphatic vessels. 



EXPERIMENT XXVI. 



I tied a ligature round the thoracic duct of a 

 dog, just before it perforates the angle of the left 

 subclavian and jugular veins. I then made two 

 wounds in the left hind leg, and introduced some 

 of the woorara in powder into them. In less 

 than a quarter of an hour the animal became af- 

 fected with the usual symptoms, and died in a 

 few minutes afterwards. 



