THE BRAIN AND ITS FUNCTIONS. 
By J. LUYS, 
Physician to the Hospice de la Salpétriére. 
With Illustrations. 12mo, cioth. Price, $1.80. 
“No living pbysiologist is better entitled to speak with authority upon the structure 
ard functions of the brain than Dr. Luys. His studies on the anatomy of the nervous 
system are acknowledged to be the fullest and most systematic ever undertaken.”— 
St. James’s Gazette. 
“Dr. Luys, at the head of the great French Insane Asylum, is one of the most 
eminent and successful investigators of cerebral science now living; and he has given 
unquestionably the clearest and most interesting brief account yet made of the struct- 
ure and operations of the brain.”"— Popular Science Monthly. 
“Tt is not too much to say that M. Luys has gone further than any other investi- 
gator into this great field of study, and only those who are at least dimly aware of the 
vast changes going on in the realm of psychology can appreciate the importance of his 
revelations. Particularly interesting and valuable are the chapters dealing with the 
genesis and evolution of memory, the development of automatic activity, and the de- 
velopment of the notion of personality.”"—Boston Evening Traveller. 
“Thanks to his method of cutting the brain into thin sections, hardening them with 
chromic acid, photographing them, and then examining the plates through the micro- 
scope, he has succeeded in gaining a knowledge of the structure of the brain which is 
amazing in extent and startling in its character. But, however advanced his anatomy, 
his physiology is still more so. He has reached conclusions which will he of high im- 
portance in the treatment of mental diseases and derangements.”— Boston Courier. 
““M. Luys is one of the most indefatigable of explorers. The first part of the volume 
is devoted to the anatomy of the brain; the second part is purely physiological, and 
naturally shades into the domain of psychology. The author says: ‘I have endeavored 
to show that the most complex acts of psycho-intellectual activity are all definitely 
resolvable, by the analysis of nervous activity, into regular processes; that they obey 
regular laws of evolution; that, like all their organic fellows, they are capable of being 
interrupted or disturbed in their manifestations by dislocations occurring in the essen- 
tial structure of the organic substratum which supports them; and that, in a word, 
there is from this time forth a true physiology of the brain, as legitimately established, 
as legitimately constituted, as that of the heart, lungs, and muscular system.’ ”— 
Philadelphia Press. 
“For years the brain has formed the subject of Dr. Luys’s public lectures at the 
eat asylum over which he presides. He has paid particular attention to these as yet 
ittle explored regions, the nervous centers, making, for that purpose, regularly strati- 
fied sections of the cerebral tissue, and faithfully reproducing them by means of pho- 
tography. In this way he has been able to throw fresh light on the intricate structure 
of the nerve-cell and the organization of its protoplasm. MHaving thus examined the 
elementary properties of the nervous system, he has proceeded to show how it operates 
in producing the phenomena of cerebral physiology, and, carrying the data of contem- 
porary physiology into the domain of speculative psychology, he has endeavored to 
show that the most complex acts of psycho-intellectual activity are all definitely re- 
solvable into regular processes and obey regular laws of evolution.”—Montreal Gazette. 
For sale by all tooksellers ; or sent by mail, post-paid, on receipt of price. 
New York: D. APPLETON & CO., 1, 38, & 5 Bond Street. 
