ic)4 Mr. Brodie on the different Modes 
drops of the juice of aconite. Twenty-three minutes after- 
wards he was affected with symptoms in all essential respects 
similar to those, which occurred in an experiment already re- 
lated, where the juice was injected into the rectum, and at the 
end of forty-seven minutes from the application of the poison, 
he was apparently dead. Two minutes after apparent death, 
the heart was found contracting, but very feebly. 
Experiments with the Wooram * 
Exp. 19. A small quantity of the woorara in powder was 
applied to a wound in the side of a Guinea pig. Ten minutes 
afterwards the animal was unable to walk ; then he became 
quite motionless, except some slight occasional convulsions. 
He gradually became insensible, the respirations were la- 
boured, and at the end of fourteen minutes from the applica- 
tion of the poison, the respiration had entirely ceased, and he 
was apparently dead ; but on opening the thorax, the heart 
was found acting seventy times in a minute, circulating dark 
coloured blood, and it continued to contract for several minutes 
afterwards. On dissection no preternatural appearances were 
observed in the brain ; nor was there any other appearance 
in the limb than would have arisen from an ordinary wound. 
Exp. 20. I made a wound in the side of a Guinea pig, and 
introduced into it about two grains of the woorara in powder. 
* The Woorara is a poison with which the Indians of Guiana arm the points of 
their arrows. It appears not to differ essentially from the Ticunas, which was em- 
ployed in the experiments of the Abbe Fontana. I am indebted to Dr. E. N. 
Bancroft, who not only furnished me with some of the Woorara which he had in 
his possession, but also lent me his assistance in the experiments which were made 
with it. 
