Scientific Publications. 



MAN BEFOBS METAI^. B7 N. Jolt, Professor at the Bcience Faculty 

 of Tonlonao ; Correspondent of the Institute. "With 148 Illastratlons. 12mo. 

 Cloth, $1.75. 



" The discussion of man^s origin and early history, by Professor De Quatrefages, 

 formed one of the most useful volumes in the * International bcientiflc eieries,^ and 

 the same collection is now ftirther enriched by a popular treatise on paleontology, by 

 M. N. Joly, Professor in the University of Toulouse. The title of the book, * Man 

 before Metals,^ indicates the limitations of the writer^s theme. His object is to bring 

 together the numerous proofs, collected by modem research, of the great age of the 

 human race, and to show us what man was, in respect of customs, industries, and 

 moral or religious ideas, before the use of metals was known to him.^' — I^eto York 

 JSun. 



" An Interesting, not to say fascinating volume."— JVetc York CJiurchman. 



AiaMAX INTELXIGBNCE. By Geobqe J. Bouanes, F. R. S., Zoological 

 Secretary of the LlnnsBan Society, etc. 12mo. Cloth, $1.75. 

 " My object in the work as a whole is twofold : First, I have thought it desirable 

 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 impor- 

 tant object is that of considering the facts of animal intelligen 3e In their relation to the 

 theory of descent." — From the Pr^ace. 



" Unless wo are greatly mistaken, Mr. Bomanes^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, Ailly justified himself in his 

 modest pre&ce. The resnit 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-assnred observations on the mental life of animals."— ^a^' 

 urda/y SevUw, 



"The author believes himself, not without ample cause, to have completely bridged 

 the supposed gap between instinct and reason by the authentic proofs here mar- 

 shaled of remarkable intelligence in some of the Mgher animals. It is the seemingly 

 conclusive evidence of reasoning powers famished by the adaptation of means to ends 

 in cases which can not be explained on the theory of inherited aptitude or habit." — 

 J!few York £^n. 



THE SCIENCE OF POMTICS. By 8hhu)on Amos, M. A., author of "The 

 Science of Law," etc. 12mo. Cloth, $1.75. 



" To the political student and the practical statesman it ought to bo of great valne." 

 — iVew Yorx Sisrald. 



" The author traces the pubjecfc irom Plato and Aristotle In Greece, and Gioero in 

 Bome, to the modem schools m the English field, not slighting the teachings of the 

 American Bevolution or the lessons of the French Bevolution of 1798. Forms of gov- 

 ernment, political terms, the relation of law, written and unwritten, to the subject, a 

 codification fi-om Justinian to Napoleon in France and Field in America, are treated 

 as parts of the subject in hand. Necessarily the subjects of executive and legislative 

 authority, police, liquor, and land laws are considered, and the question ever growing 

 in importance in all countries, the relations of corporations to me state." — Ifew York 

 Observer, 



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



