576 MR. youatt’s veterinary lectures. 
frame. One of the pedicles of the cerebellum (crura cerebelli) 
was divided by M. Majendie; the animal commenced a rapid 
rotatory motion on its axis, which it continued until prevented by 
some mechanical obstacle. A deep section of the cerebellum of 
a pigeon was made, and the bird began to walk and fly back¬ 
wards. Some of these experiments were curiously diversified by 
MM. Fleurens and Majendie: a deep section was made in the 
mesian plane through the cerebellum of a rabbit; the eyes 
rolled in an extraordinary manner, and the animal swung from 
one side to the other, as if unable to balance himself. A ver¬ 
tical section was made on one side, and the animal rolled over 
and over incessantly; the right eye was directed downwards and 
forwards, and the left eye upwards and backwards. A similar 
section being made on the other side, the animal stopped, and 
the eyes resumed their natural direction. M. Majendie divided the 
crus cerebelli in a rabbit, and for eight days (far, far too long!) 
that this animal survived the injury, it continued to revolve 
upon its long axis, unless stopped by coming in contact with an 
obstacle, and when stopped, it ate upon its back with its mouth 
upwards. 
Functions of the Cerebrum and Cerebellum, —The conclusion 
from these experiments can scarcely be avoided, that the cere¬ 
brum is concerned with both sensation and volition—with the 
first exclusively, and with the second to a great degree; and that 
the cerebellum is likewise concerned with volition—that it has 
the governing and direction of the motion, if not the issuing of 
the mandate. Dr. Bostock has well expressed this, when he 
says, that ^Hhe experiments” (of M. Fleurens principally) will 
prove no more than that the cerebellum is the centre of the sym¬ 
pathetic, or associated actions of the nerves that are concerned in 
voluntary motion.” 
Different Opinio?is respecting the Functions of the Cerebellum .— 
I have often had occasion to regret, that with so many subjects, 
and so many animals to treat of in one course of lectures, I am 
compelled, with seeming carelessness and want of candour, to 
pass over in silence the opinions of some of the best physiologists 
and pathologists on several points of theory and practice ; other¬ 
wise it would have been interesting to have inquired into the 
opinion of Willis, who imagined that the cerebrum was the 
organ of the perceptions from the external senses and also of vo¬ 
luntary motion, and the cerebellum of the involuntary and vital 
functions; or that of Dr. Wilson Philip, who denies that it has 
any relation to voluntary or involuntary motion, but does not assign 
to it any function. Majendie agrees with Fleurens, that it is 
the regulator or balance of animal motion ; while Gall and others 
