Scientific Publications. 
A TREATISE ON CHEMISTRY. By H. E. ROSCOE, F. R. S., and C. 
SCHORLEMMER, F. R. S., Professors of Chemistry in the Victoria University, 
Owens College, Manchester. Illustrated. 
Vols. I and II. Inorganic Chemistry. 8vo. 
Vol. I. -Non-Metallic Elements. Price, $5.00. 
Vol. Il.-Part I. Metals. Price, $3.00. 
Vol. II. Part II. Metals. Price, $3.00. 
Organic Chemistry. 8vo. 
Vol. III. Part I. The Chemistry of the Hydrocarbons and their 
Derivatives. Price, $5.00. 
Vol. III. Part II. Completing the work. (In preparation.) 
" It is difficult to praise too highly the selection of materials and their arrange- 
ment, or the wealth of illustrations which explain and adorn the text. Whatever 
tests of accuracy as to figures and facts we have heen able to apply have been 
satisfactorily met, while in clearness of statement this third volume leaves noth- 
ing to be desired." London Academy. 
THE ELEMENTS OF ECONOMICS. By HENRY DUNKING MACLEOD, 
M. A., of Trinity College, Cambridge, and the Inner Temple, barrister-at- 
law selected by the Royal Commissioners for the Digest of the Law to pre- 
pare the digest of the law of bills of exchange, bank notes, etc. Lecturer 
on Political Economy in the University of Cambridge. In two volumes. 
Volume I now ready. 12mo, cloth. Price, $1.75. 
" Mr. Macleod's works on economic science have one great merit, they belong 
to the class of books that assist inquiry by pelting their readers thinking. The 
views they set forth are not only often valuable in themselves, but they are the 
generative cause of ideas which may also be valuable in their readers. His 
books, moreover, are written in the proper way. The subject is divided care- 
fully in accordance with the opinions held by the author ; all classifications when 
made are adhered to, and the descriptions and definitions adopted are admirable 
from his point of view, and in some cases from a wider stand-point." The Statist. 
ADOLPH STRECKER'S SHORT TEXT-BOOK. OF ORGANIC 
CHEMISTRY. By Dr. JOHANNES WISLICENUS. Translated and edited, 
with Extensive Additions, by W. H. HODGKINSON, Ph. D., and A. J. GBEEN- 
AWAT, F. I. C. 8vo. Cloth, $5.00. 
" Let no one suppose that in this ' short text-book ' we have to deal with a 
primer. Everything is comparative, and the term 'short' here has relation to 
the enormous development and extent of recent organic chemistry. This solid 
and comprehensive volume is intended to represent the present condition of the 
science in its main facts and leading principles, as demanded by the systematic 
chemical student. We have here, probably, the best extant text-book of organic 
chemistry. Not only is it full and comprehensive and remarkably clear and 
methodical, but it is up to the very latest moment, and it has been, moreover, 
?rop'ired in a way to secure the greatest excellences in such a treatise." The 
'opular Science Monthly. 
THE ORIGIN OF CIVILIZATION AND THE PRIMITIVE CON- 
DITION OF MAN, Mental and Social Condition of Savages. 
By Sir JOHN LTTBBOCK, Bart., F. R. S., President of the British Association. 
With Illustrations. Fourth edition, with numerous Additions. 8vo, clctb. 
Price, $5.00. 
For sale by all booksellers ; or sent by mail, post-paid, on receipt of price. 
D. APPLETON & CO., Publishers, 
1, 3, & 5 Bond Street, New York. 
