382 Notices of Books. [July; 
posed of separately acting parts, as affirmed by Gall. Whether 
each hemisphere of the brain is a distinét organ conferring 
duality of mind, as also stated by Gall and re-affirmed by Brown- 
Sequard. What is matter? ‘Is matter merely the incrusta- 
tion of spirit-atomic structure aggregated into molecular structure 
on the surface, as it were, and passing continually from one to 
the other—as the atmosphere becomes visible in the form of a 
cloud when it comes in contact with a colder body? Or is it 
that the vast interspaces between the worlds, those regions void 
to our senses, in which those countless worlds are as grains of 
dust, are really thronged with life which—because it is not of 
molecular structure—is imperceptible to our very limited material 
senses ?” 
Heredity and Hybridity are especially mentioned, and all those 
phases of the doctrine of Evolution which relate to the Descent 
of Man. Sleep, Dreams, Somnambulism (Natural and Artificial), 
Delirium, Insanity, and the Influence of the Mind upon the 
Body, are also among the subjects named and partly discussed 
in this Address. 
We dare not go further than the mere enumeration of these, 
as any discussion of either would lead us far beyond the limits 
of this notice, and must conclude by heartily wishing that the 
Psychological Society will strictly adhere to the programme and 
principles prescribed by Serjeant Cox. If it does so, it cannot 
fail to do good service to the highest of all the sciences. 
Principles of Mental Physiology; with their Applications to the 
Training and Discipline of the Mind and the Study of its 
Morbid Conditions. By Wiritam B. CARPENTER, M.D., 
LL.D., F.R.S., F-L.S., F-G:S., &c: ‘London’ Aasaaem 
and Co. 
Tuts work is described by its Author as ‘‘ An Expansion of the 
Outline of Psychology, contained in the fourth and fifth editions 
of my ‘Principles of Human Physiology’” (1852 and 1855). 
The keynote of the whole work is struck in the next paragraph 
of the Preface, where Dr. Carpenter tells us that ‘“‘ Not having 
seen reason to make any important change in my own psycho- 
logical views since I first put them forward, but, on the contrary, 
having found them confirmed and extended by the experience 
and reflection of twenty years, I set myself to revise my former 
exposition of them.” ‘The present work is an expanded result of 
this effort. Readers who are desirous of admiring the immo- 
bility of Dr. Carpenter’s “ psychological views,” and of studying 
the state of psychology at the period named, will find what they 
require somewhat irregularly diffused through the 708 pages of 
this work. 
Dr. Carpenter's psychological immobility, his faithful ad- 
