Scientific Publications. 
MAN BEFORE METALS. By N. Jory, Professor at the Science Faculty 
of Toulouse ; Correspondent of the Institute. With 148 Llustrations. 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 Scientific series, and 
the same collection is now further 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 modern, research, of the great age of the 
human race, and to show us what man was, in respect of customs, industries, and 
pol or religious ideas, before the use of metals was known to him.’—New York 
un. 
“ An interesting, not to say fascinating volume."—WNew York Churchman. 
ANIMAL INTELLIGENCE. By Groraz J. Romanes, F. RB. 8., Zodlogical 
Secretary of the Linnzan Society, ete. 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 sci , and also taphysici 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 intelligenze 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 resnit is the appearance ofa collection of facts which will bea 
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.’’—Sat- 
‘ urday Review. = 
. “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 higher animals. It is the seemingly 
conclusive evidence of r ing powers furnished by the adaptation of means to ends 
in cases which can not be explained on the theory of inherited aptitude or habit.”"— 
New York Sun. 
THE SCIENCE OF POLITICS. By Saetpon Amos, M. A., author of “ The 
Science of Law,” ete. 12mo. Cloth, $1.75. 
“To the political student and the practical statesman it ought to be of great value.” 
—New York Herald. 
“The author traces the subject from Plato and Aristotle in Greece, and Cicero in 
Rome, to the modern schools in the English field, not slighting the teachings of the 
American Revolution or the lessons of the French Revolution of 1798. Forms of gov- 
ernment, political terms, the yelation of law, written and unwritten, to the subject, a 
codification from 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 jidered, and the question ever growin 
in eens in all countries, the relations of corporations to the state."—New Yor 
observer. 
New York: D. APPLETON & CO., 1, 3, & 5 Bond Street. 
