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REVIEW OF PHYSIOLOGY. 
REVIEW OF PHYSIOLOGY. 
Assistance to a Cerebral Hemisphere by the Other 
[By M. de Mctnaceine \.—Proofs of the duality of the brain have 
been seen in cases of dividing of the personality, in loss of mem¬ 
ory after disease or traumatisms, in the return of memory after 
a long time, in remembering while asleep what was forgotten 
while awake. New proofs are produced by the author. The left 
hemisphere is the most active in the awakened state and the most 
torpid during sleep. If one tries to tickle with a feather the face 
of a person sleeping deeply, he will make motions as to chase 
flies, but always with the left hand, the right remaining asleep. 
On the contrary, left-handed people make with the right hand the 
same movements to chase flies off, no matter whichever side of 
the face is tickled. In young dogs kept in absolute sleep, the 
cutaneous sensibility diminishes and becomes alternate, passing 
after io or 20 seconds from the right to the left side; and the 
pupil of the insensible side is itself indifferent to the action of 
light. It seemed as if these animals have their hemispheres 
periodically and alternately active. In experiences oi retro- 
graphy, if one is made to write with both hands, there is always 
among the letters of the direct writing some written in writing 
of mirror (retrography) with the right hand, and still they had 
been written at that moment by direct writing with the left 
hand. And a last fact, in case of left hemicrania accompanied 
with difficulty of speech and of writing, the direct writing with 
the left hand (corresponding to the activity of the brain) becomes 
more clear and firm than in ordinary condition of health.— (Rev. 
Med. Sc.) 
Upon the Alterations of the Nervous System during 
Inanition [By A. Monti ].—Lesions of various organs have 
been described in inanition, but it has always been admitted, till 
at present, that the central nervous system remains intact and 
that its material like its functional integrity are preserved. 
Experiments made by Monti on rabbits submitted to a long 
fast, have shown him that inanition brings on deep alterations 
in the nutrition of the central nervous system ; located on the 
protoplasmic prolongations, on the body of the nervous cell 
and consisting in a varicous atrophy: the cells degenerate in 
losing their aspect of adult to return to that of foetal element. 
—(Ibid.) 
The Effect of Suppression of Water in Animals [Ry 
