566 ANTHROPOLOGY. 
that after the injury thus inflicted, the animal had only an impet- 
fect control over the movements of the part of the limb in ques- 
tion. Recently Dr. Hughlings Jackson, from the observation of 
various diseased conditions in which peculiar movements occur in x 
distinct groups of muscles, has adduced evidence in support ated 
the conclusion that in the cerebral convolutions are localized the i 
centres for the production of various muscular movements. With — 
in the last few months these observations have been greatly ats 
tended by the elaborate experiments of my able colleague in King’s 
College, Prof. Ferrier. a 
Adopting the method of Fritsch and Hitzig—but instead of 
using galvanic he has employed Faradic electricity, with which, 
strange to say, the investigators just mentioned obtained no very 
definite results—he has explored the brain in the fish, frog, dog, 
cat, rabbit and guinea-pig, and lately in the monkey. The results 
of this investigation are of great importance. He has explored 
the convolutions of the cerebrum far more fully than the German 
experimenters, and has investigated the cerebellum, corpora quad- 
rigemina, and several other portions of the brain not touched upos 
by them. There is, perhaps, no part of the brain whose function, 
has been more obscure than the cerebellum. Dr. Ferrier has wi ; 
covered that this ganglion is a great centre for the movements 
the muscles of the eyeballs. He has also very carefully n ot 
out in the dog, cat, ete., the various centres in the convolutions 
the cerebrum, which are concerned in the productions of moy? : 
ments in the muscles of the eyelids, face, mouth, tongues nig da io 
fore and hind feet, and tail. He confirms the doctrine that t! ee 
ptic thalamus 
major and its neighboring convolutions. 
in the case of the higher brain of the monkey 
found in the dog or cat—to wit, a portion in the fro 
brain, whose stimulation produces no muscular movemen mi 
may be the function of this part, whether or not it seh B 
isters to intellectual operations, remains to be seen. pe pe 
searches of Fritsch, Hitzig, Jackson, and Ferrier, mark 196. of 
mencement of a new era in our knowledge of brain funo : 
all the studies in comparative physiology there will. be pg 
interesting, and few so important, as those in which eee ebrate : 
Centres will be mapped out in the brains throughout the Y8 
nt part of BY | 
