DE. D. FEEEIEE ON THE "BEATTY OF MONKEYS. 
459 
continued good, the hippocampus and uncinate gyrus remaining intact, or at least not 
presenting any marked abnormality on the right hemisphere. 
Experiment XIV. 
March 9th, 1873. — The brain of a monkey was exposed on both sides in the region 
of the upper part of the superior and middle temporo-sphenoidal convolutions, and red- 
hot wires were passed from this point downwards and forwards, with the intention of 
breaking up the grey matter on the outer aspect of the lobes as far as the subiculum 
cornu ammonis. Owing to haemorrhage from the left, the destruction was made more 
deeply than intended into the lobe in attempts to check it. The operation was com- 
pleted at 3.30. 
4.15 p.m. Is recovering from its stupor, and moves when disturbed. 
4.25 p.m. Begins to sit up, but seems to have some difficulty in using its right limbs. 
4.40 p.m. Tactile sensation seems gone on the right side. There is no reaction to the 
application of a hot iron to the right hand or foot, but slight on the ear. The same 
heat causes violent reaction on the left side. 
The animal has not yet sought to move about. 
4.50 p.m. Neither aloes nor citric acid caused any reaction when placed on the tongue. 
Acetic acid caused no reaction when held befor the nostrils. 
Tactile sensation, as indicated by reaction, is unimpaired on the left side, but there 
is no reaction on the right side to hot iron or pinching. 
Acetic acid caused no reaction when placed on the tongue. 
No reaction to the application of a hot iron to the right side of the tongue, and little, 
if any, on the left. 
The animal sits up, supporting itself with its left hand and foot chiefly. Makes no 
use of its right hand, but clings firmly with its left hand when about to be placed on 
the floor after being taken up. 
5.10 p.m. Acetic acid placed within the right nostril caused no reaction and no lacry- 
mation. Placed within the left nostril caused no torsion on turning away the head, but 
caused a copious flow of tears from the left eye. 
5.40 p.m. Aloes nor acetic acid applied to the tongue caused any reaction. 
The animal is perfectly conscious ; though it sits still, and is disinclined to move. 
It gives no signs of hearing when a noise is made beside its cage. 
Cutaneous sensibility of the left side remains intact ; apparently is quite gone on the 
right. The animal was placed in its cage, where it lay half asleep, but immediately 
roused itself when the left hand was touched. 
6 p.m. While lying asleep in its cage with the tongue showing between the teeth, acetic 
acid was applied to the top of the tongue. No reaction of any kind ensued. Applied 
to the left nostril no movement resulted. 
A hot wire applied to the tip of the tongue caused no reaction. The same stimulus 
3 p 2 
