Animal Intelligence 



By GEOEGE J. ROMANES, F. E. S., 



Zoological Secretary of the Linnaean Society, etc 



12mo. Cloth, $1.15. 



" My object in the work as a whole is twofold : First. T have thought it de- 

 sirable that there sliould be f^ometbing resembling a text-book of the facts of 

 Comparative Ps^ychology, to which meu of science, and also metaphysicians, may 

 turn whenever they have occasion lo acquaint themselves with the particular 

 level of intelligence to which this or that; species of animal attains. My second 

 and much more important olgect is that of considering the facts of animal intel- 

 ligence in their relation to the theory of descent." — F7vrH the Pre/ace. 



" Unless we are greatly mistaken, Mr. Romanes's work will take its place as 

 one of the most attractive volumes of the International Scientific Skktks. 

 Some persons may. indeed, be disposed to say that it is too attractive, that it 

 feeds the popular taste for the curious and mai-velous without supplving 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 

 Psycholosry, for this is the first attempt to present systematically well-assured 

 observations on the mental lite of animals." — Saturday Review. 



"The author believes himself, not without ample cau^^e, to have completely 

 bridged the supposed gap between instinct and reason by the authentic proofs 

 here mar-haled of remarkable intelligence in some of the higher animals. It is 

 the seemingly conclusive evidence of reason intr 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."— ^Veu; York Sun. 



"The high standing of the author as an original investigator is a puflicient 

 guarantee that his task has been conscientiously carried out. His subject is one 

 of absorbing interest. He has collected and classified an enormous amount of 

 information concerning the mental attributes of the animal world. Tlie result 

 is astonishinj;. 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."— iVew York Herald. 



" The chapter on monkeys closes this excellent work, and perhaps the most 

 instructive portion of it is that devoted to the life-history of a monkey."— iVcw 

 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 wiiich 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 suggestive, 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 tracinc: the principles which are 

 concerned in the genesis of mind."— ^os^on Lommonwealth. 



" One of the most interesting volumes of the series."— JVcu' York Christian at 

 Work. 



" Few subjects have a greater fascination for the ereneral reader than that 

 v:ith which this book is occupied."— G^oorf Literature, New York. 



For sale by all booksellers ; or sent by mail, pod-paid, on receipt of price. 



New York: D. APPLETON & CO., 1, 3, and 5 Bond Street. 



