LESION OF DIFFERENT REGIONS OF THE CEREBRAL HEMISPHERES. 519 
similar action of the left. The slightest touch on the limbs attracted the attention of 
the animal as much on the right side as the left. 
Four months subsequent to the operation the condition was essentially the same, 
the associated movements of the right arm and fingers being frequently seen along 
with similar vigorous movements of the left arm. No volitional movement, prehension, 
&c., had ever been made with the right arm. The foot was lifted en masse with the leg 
when the animal moved about. 
Six months after the operation the associated movements of the right arm were 
sometimes seen in a very remarkable manner. When the animal scratched itself 
vigorously with the left hand, a similar scratching action was initiated on the right, 
and this was frequently continued for a distinct interval after the left had ceased. 
The scratching with the right hand was made in the air, and quite without purpose. 
Seven months after the operation the pliability of the right leg to passive move¬ 
ments was somewhat diminished, and there was a tendency to equino-varus when the 
leg was fully extended. There was no marked rigidity of the right arm, though the 
thumb when straightened readily returned to its position of flexion on the palm. The 
fingers could be straightened without causing great tension of the flexors. The 
animal was exhibited before the Physiological Section of the International Medical 
Congress of 1881, nearly eight months after the operation 
“ The movements of the leg were seen to be greatly impaired, and the arm quite 
powerless, being maintained flexed at the elbow, the thumb bent on the palm, and the 
finders semiflexed.”* 
The animal was killed with chloroform, and a committee was appointed to examine 
and report on the condition of the brain, along with that of a Dog exhibited by Prof. 
Goltz at the same time. 
A photograph was taken of the brain, which is here given (Plate 25, fig. 52). As 
it was not considered very satisfactory, a drawing was made and a woodcut, which 
will be found in vol. 1, p. 243, of the Transactions of the Congress. 
A preliminary account of the brain was also given by Prof. Schafer,, and a more 
extended and corrected report has been since published by him in the ‘ Journal 
of Physiology,’ vol. 4, Nos. 4 and 5. The region destroyed comprised: “ The 
ascending frontal convolution except a very small portion of the upper end next the 
great longitudinal fissure and except also at its lower end ; about one centimeter in 
length, or nearly one-third of the whole length of the convolution, here remaining 
intact. The posterior third of the upper division of the anterior portion of the (frontal) 
lobe, the lowrnr division remaining untouched. 
“ In the parietal lobe : the greater part of the ascending parietal convolution, only 
about 5 mms. at the upper end, and 6 mms. at the lower end remaining. A small piece 
of the parietal lobule. Rather more than the half (longitudinally) of the ascending 
limb of the angular gyrus, and of the supramarginal convolution. 
* Transactions of tlie Int. Med. Congress, 1881, vol. 1, p. 237. 
