5o8 SCIENCE. [Vol. XIII. No. 334 



Macmillan & Cos New Scientific Books. 



WALLACE'S DARWINISM. 



DARWINISM. An Exposition of the Theory of Natural Selection, with some of its Applications. By Alfre'd'Rus- 

 SEL Wallace, LL.D.. F.L.S., author of " The Malay Archipelago," etc., etc. With Map, Portrait, and Illnstrations. 12mo, $1.75. 

 '* The present work contains the conclusions upon this great subject of thirty years of thought and observation. ... A contribution of the first impor- 

 tance to the literature of the subject. At the same time it would be difficult to find a book more entertaining to the general reader. He writes with the sincer- 

 ity and easy mastery which comes of fulness of knowledge. There can be no more Interesting guide in that great wonderland of science In which he has been 

 so long one of the chief discoverers."— iVe^y York Times. 



GALTON'S NATURAL INHERITANCE. 



NATURAL INHERITANCE. By Francis Galton, F.R.S., author of "Inquiries into Human Faculty," etc., 



etc. 8vo. $2.50. 



Mr. Gslton is the highest authority on this subject ; a new book by him Is an event in the sclentlflo world."— Boston Advertiser. 



*' Mr. Francis Galton, whose studies in heredity have been lifelong, whose methods are so patient. Is the last man In the world to ventilate startling theories 

 or to assert ill-digested things as tacts . . . For perfecting philosophical inquiry, for prudence and good Judgment, Mr. Galton is to be considered as pre- 

 senting the highest examples of modern research."— JVew York Times. 



WEISMANN ON HEREDITY. 



ESSAYS UPON HEREDITY AND KINDRED BIOLOGICAL PROBLEMS. By Dr. August Weis- 



MANN. Translated by E. B. Poulton, M.A., F L.S; Selmar Schonlaad, Pii.D., and A. E. Shipley. M.A., P.L S. 8vo, $4.00. 



THE CHEMISTRY OF PHOTOGRAPHY. 



THE CHEMISTRY OF PHOTOGRAPHY. By Raphael Meldola, F.R.S., Professor of Chemistry in Fins- 

 bury Technical College. "With Illustrations. 12mo, $2.00. 

 " Prof. Meldola's work will find a hearty welcome, not only from professional photograpliers who wish, to understand the principles upon which their art 

 is hased, but even from chemists and physicists who will find in it no small matter for thought and study. . . . The book deserves very hearty commenda- 

 tion as a popular scientific treatise In the best sense of the term." — New York Nation. 



SIR WILLIAM THOMSON'S LECTURES. 



POPULAR LECTURES AND ADDRESSES ON VARIOUS SUBJECTS IN PHYSICAL SCI- 

 ENCE. By Sir William Thomson, D.C.L., LLC, F.R.S.E., Professor of Natural Philosophy in the UniTersity of Glasgow. 

 With lUnstiations. Vol. I. — Constitution of Mattter. Nature Series. 12mo, $2.00. 

 " We do not believe that any man of science will rise from the perusal of these papers without a deepening or a shattering of old convictions, and without 



hroader and clearer views of the possibilities of future scientific progress. . . . We await the appearance of the second and third volumes of these papers- 



"With great interest. — Nation. 



THE PLEASURES OF LIFE. Part II. 



THE PLEASURES OF LIFE. Part 2. By Sir John Lubbock, Bart., M.P., D.C.L., etc. 121110. Paper, 35 

 cents : Cloth, 60 cents. 



Contents. 



Beauties of Nature. Poetry. 



Religion. Troubles of Life. 



Health. Hope of Progress. 

 The Destiny of Man. 



THE PLEASURES OF LIFE. Parts i and 2. Complete in one volume. Cloth, $1.25. 



" Really admirable. . . . Sir John Lubbock writes In a charming style. . . . A pleasanter little book than this Is seldom published. It Is at once- 

 suggestive and bracing. It settles no deep and dark problem, indeed, but treats the varying phases and vicissitudes of life with a broad and hopeful philoso- 

 phy, and from points of view the sustained elevation of which adds much to the effect of the whole. — iV. Y. Tribune. 



GLEANINGS IN SCIENCE. 



A SERIES OF POPULAR LECTURES ON SCIENTIFIC SUBJECTS, By Gerald Molloy. 

 Crown 8vo, $2.25. 



Contents : 



I. The Modern Theory of Heat. II. Lightning, Thunder, and Lightning-conductors. III. The Storing of Electrical Energy. 



IV. The Sun as a Storehouse of Energy. V. The Electric Light. VI. The Glaciers of the Alps. 



The lectures are followed by an appendix giving a short account of the recent controversy on Lightning-conductors. 



The Literary World says :— " The object of Dr. Molloy Is not to present the discoveries of an original investigator, but to give to the ordinary public an 

 interesting account of recent progress in various branches of physical science. In this the lecturer has been very successful, for the book is very pleasant to 

 read." 



The Spectator says: — "Perhaps the lectures on the 'Electric Light' form the most interesting portion of this book, inasmuch as they make us familiar with 

 the methods of appliances to which we OT?e the marvels of electric lighting. . . . They are arranged in a masterly manner, all the moat essential facts rep- 

 resenting the production of the electric current, and the marvelous applications by which the current is made to yield the electric light. . . . All the lec- 

 tures contained in this volume are pervaded by a philosophical spirit which gives a sort of unity to the various subjects outwardly unconnected of which they 

 treat.'' 



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