ANIMAL INTELLIGENCE. 
By GEORGE J. ROMANES, F.R&.5&., 
Zodlogical Secretary of the Linnzan Society, etc. 
12mo. CtorH, $1.75. 
“My object in the work as a whole is twofold: First, I have thought it de- 
sirable that there should be something resembling a text-book of the facts of 
Comparative Psychology, to which men of science, and also metaphysicians, may 
turn whenever they have occasion to acquaint themselves with the particular 
level of intelligence to which this or that species of animal attains. My second 
and much more important object is that of considering the facts of animal intel- 
ligence in their relation to the theory of descent.”°—From the Preface. 
“‘ Unless we are greatly mistaken, Mr. Romanes’s work will take its place as 
one of the most attractive volumes of the INTERNATIONAL SCIENTIFIC SERIES. 
Some persons may, indeed, be disposed to say that it is too attractive, that it 
feeds the popular taste for the curious and marvelous without supplying any 
commensurate discipline in exact scientific reflection; but the author has, we 
think, fully justified himself in his modest preface. The result is the appearance 
of a collection of facts which will be a real boon to the student of Comparative 
Psychology, for this is the first attempt to present systematically well-assured 
observations on the mental life of animals.”’-—Saturday Review. 
‘‘The author believes himself, not without ample cause, to have completely 
bridged the sunposed gap between instinct and reason by the authentic proofs 
here marshaled of remarkable intelligence in some of the higher animals. It is 
the seemingly conclusive evidence of reasoning powers furnished by the adapta- 
tion of means to ends in cases which can not be explained on the theory of inher- 
ited aptitude or habit.’"—New York Sun. 
““The high standing of the author as an original investigator is a sufficient 
guarantee that his task has been conscientiously carried out. His subject is one 
of absorbing interest. He has collected and classifie¢ an enormous amount of 
information concerning the mental attributes of the animal world. The result 
is astonishing. We find marvelous intelligence exhibited not only by animals 
which are known to be clever, but by others seemingly without a glimmer of 
light, like the snail, for instance. Some animals display imagination, others 
affection, and so on. The psychological portion of the discussion is deeply in- 
teresting.”’"—New York Herald. 
‘‘ The chapter on monkeys closes this excellent work, and perhaps the most 
instructive portion of it is that devoted to the hfe-history of a monkey.”’—New 
York Times. 
‘* Mr. Romanes brings to his work a wide information and the best of scientific 
methods. He has carefully culled and selected an immense mass of data, choos- 
ing with admirable skill those facts which are really significant, and rejecting 
those which lacked sustaining evidence or relevancy. The contents of the volume 
are arranged with reference to the principles which they seem to him to estab- 
lish. The volume is rich and saggestive, and a model in its way.”’— Boston Courier. 
‘It presents the facts of animal intelligence in relation to the theory of de- 
scent, supplementing Darwin and Spencer in tracing the principles which are 
concerned in the genesis of mind.’’— Boston Commonwealth. 
‘* One of the most interesting volumes of the series.’"— New York Christian at 
Work. 
‘Pew subjects have a greater fascination for the general reader than that 
with which this book is occupied.’”’— Good Literature, New York. 
For sale by all booksellers; or sent by mail, post-paid, on receipt of price. 
New York: D. APPLETON & CO., 1, 3, and 5 Bond Street. 
