GH. XLVIII.] 



JACKRONIAN EPILEPSY. 



673 



result produced is a subjective sensation, similar to what we 

 imagine is produced in animals with an electric current. 



We may now proceed from these general considerations to 



Fig- 496 



Fig. 497- 



Figs. 496 and 497. Brain of dog, viewed from above and in profile. /', frontal (insure 

 sometimes termed crucial sulcus. corresponding to the fissure of Rolando in man. 

 S, fiwiure of Sylvius, around which (lie four longitudinal convolutions are concentrically 

 arranged ; i, flexion of head on the neck, in the median line ; 2, flexion of head on the 

 neck, with rotation towards the aide of the stimulus; 5. 4, flexion and extrusion of 

 anterior limb ; 5, 6, flexion and extension of posterior limb ; 7, 8, 9, contraction of 

 orbicularis oculi, and the facial muscle* in general. The unshaded part is that exposed 

 by opening the skull. (Dalton.) 



K.P. 



X X 



