44 J\Ir. H. F. Baxter on the manifestation of Current Force 



electrode placed in contact with its divided surface, the other in 

 contact with the blood: the \i\iiGv positive 3°. 



The spinal cord was divided, one electrode inserted into it, the 

 other in contact with the divided surface of the lumbar muscles ; 

 the latter positive 4°. 



Exp. 7. Rabbit. — Death from natural causes; twelve hours 

 after death. 



The external and divided surfaces of the lumbar muscles were 

 formed into a circuit; the iowntx positive 2°. 



One electrode inserted into the spinal cord, the other in con- 

 tact with the lumbar muscles; the \?iit^v positive 5°, 



One electrode inserted into the brain, the other in contact 

 with the lumbar muscles ; the latter positive 5°. 



The external and divided surfaces of the muscles of the thigh 

 were formed into a circuit; external swxiace positive 2°. 



Matteucci* alludes to some experiments performed by MM. 

 Paciuotti and Puccinotti, and likewise by himself, in which the 

 electrodes were inserted one into the brain, the other into the 

 muscles : he says, " La deviation obtenue dans la premiere 

 immersion a ete toujours dans le meme sens, c'est-k-dire, que le 

 courant a ete dirige du cerveau aux muscles dans Panimal. 

 I/intensite du courant est tres-variable : j'ai obtenu quelquefois 

 80° et meme davantage, et quelquefois 10° a 15°, et toujours 

 dans la premiere immersion." 



Eip. 8. Rabbit. — Prussic acid dropped on the eye. 



The external surface of the muscles of the thigh and blood 

 flowing from a vein in the groin were formed into a circuit ; no 

 effect. 



Blood flowing from the internal jugular vein and the brain ; 

 blood positive 8°. 



The external surface of the adductor muscles of the thigh, and 

 blood flowing from the iliac vein, the latter slightly positive; the 

 muscles were divided and the electrode placed in contact with 

 the divided surface ; blood positive 3°. 



One electrode inserted into the brain, the other in contact 

 with the external surface of the skin ; the latter slightly positive : 

 it was then placed in contact with the abdominal viscera, the 

 other remaining in the brain ; the former positive 10°. 



Exp. 9. Cat. — Prussic acid dropped on the tongue. 



The rectus femoris divided transversely, the external and di- 

 vided surfaces were formed into a circuit ; the former slightly 

 positive. 



The external surface of the adductor muscles of the thigh, and 

 blood flowing from the iliac vein ; the latter slightly positive : 



* Traite'des Phenomenes Elecfro-Physioloffiqties, p. 121. 



