26 



A List of 



XXIV., A HISTORY OF THE GROWTH OF 

 THE STEAM ENGINE. By Professor 

 R. H. Thurston. With numerous 

 Illustrations. Fourth Edition. Crown 

 8vo. 5^. 



XXV. EDUCATION AS A SCIENCE. By 

 Alexander Bain, LL.D. Sixth 

 Edition. Crown 8vo. $s. 



XXVI. THE HUMAN SPECIES. By Prof. 

 A. De Quatrefages. Fourth Edition. 

 Crown 8vo. 5-r. 



XXVII. MODERN CHROMATICS. With 

 Applications to Art and Industry. By 

 Ogden N. Rood. With 130 original 

 Illustrations. Second Edition. Crown 

 8vo. 5-r. 



XXVIII. THE CRAYFISH: an Introduc- 

 tion to the Study of Zoology. By 

 Professor T. H. Huxley. With 82 

 Illustrations. Fourth Edition. Crown 

 8vo. 5-r. 



XXIX. THE BRAIN AS AN ORGAN OF 

 MIND. By H. Charlton Bastian, 

 M.D. With numerous Illustrations. 

 Third Edition. Crown 8vo. 5*. 



XXX. THE ATOMIC THEORY. By Prof. 

 Wurtz. Translated by G. Clemin- 

 shaw, F.C.S. Fifth Edition. Crown 

 8vo. 5-r. 



XXXI. THE NATURAL CONDITIONS OF 

 EXISTENCE AS THEY AFFECT ANIMAL 

 LIFE. By Karl Semper. With 2 Maps 

 and 1 06 Woodcuts. Third Edition. 

 Crown 8vo. $s. 



XXXII. GENERAL PHYSIOLOGY OF 

 MUSCLES AND NERVES. By Prof. J. 

 Rosenthal. Third Edition. With 

 Illustrations. Crown 8vo. 5-r. 



XXXIII. SIGHT : an Exposition of the 

 Principles of Monocular and Binocular 

 Vision. By Joseph Le Conte, LL.D. 

 Second Edition. With 132 Illustra- 

 tions. Crown 8vo. 5-r. 



XXXIV. ILLUSIONS : a Psychological 

 Study. By James Sully. Third 

 Edition. Crown 8vo. $s. 



XXXV. VOLCANOES: WHAT THEY ARE 



AND WHAT THEY TEACH. By 



Professor J. W. Judd, F.R.S. With 

 92 Illustrations on Wood. Fourth 

 Edition. Crown 8vo. $s. 



XXXVI. SUICIDE : an Essay on Com- 

 parative Moral Statistics. By Prof. 

 H. Morselli. Second Edition. With 

 Diagrams. Crown 8vo. 5-r. 



XXXVII. THE BRAIN AND ITS FUNC- 

 TIONS. By J. Luys. Second Edition. 

 With Illustrations. Crown 8vo. 5^. 



XXXVIII. MYTH AND SCIENCE : an 

 Essay. By Tito Vignoli. Third 

 Edition. Crown 8vo. $s. 



XXXIX. THE SUN. By Professor Young. 

 With Illustrations. Third Edition. 

 Crown 8vo. 5.?. 



XL. ANTS, BEES, AND WASPS : a Record 

 of Observations on the Habits of the 

 Social Hymenoptera. By Sir John 

 Lubbock, Bart., M.P. With 5 Chromo- 

 lithographic Illustrations. Ninth 

 Edition. Crown 8vo 5.?. 



XLI. ANIMAL INTELLIGENCE. By G. J. 

 Romanes, LL.D., F.R.S. Fourth 

 Edition. Crown 8vo. 5-r. 



XLII. THE CONCEPTS AND THEORIES OF 

 MODERN PHYSICS. By J. B. Stallo. 

 Third Edition. Crown 8vo. $s. 



XLIII. DISEASES OF MEMORY : an Essay 



in the Positive Pyschology. By Prof. 



Th. Ribot. Third Edition. Crown 



8vo. 5*. 

 XLIV. MAN BEFORE METALS. By N. 



Joly. Fourth Edition. Crown 8vo. $s. 



XLV. THE SCIENCE OF POLITICS. By 

 Prof. Sheldon Amos. Third Edit. 

 Crown. 8vo. $s. 



XLVI. ELEMENTARY METEOROLOGY. 

 By Robert H. Scott. Fourth Edition. 

 With numerous Illustrations. Crown 

 8vo. 5^. 



XLVII. THE ORGANS OF SPEECH AND 

 THEIR APPLICATION IN THE FOR 

 MATION OF ARTICULATE SOUNDS 

 By Georg Hermann von Meyer. 

 With 47 Woodcuts. Crown 8vo. 5^. 



XLVIII. FALLACIES : a View of Logic 

 from the Practical Side. By Alfred 

 Sidgwick. Second Edition. Crown 

 8vo. 5-r. 



XLIX. ORIGIN OF CULTIVATED PLANTS. 

 By Alphonse de Candolle. Second 

 Edition. Crown 8vo. 5-r. 



L. JELLY FISH, STAR FISH, AND SEA 

 URCHINS. Being a Research on 

 Primitive Nervous Systems. By 

 G. J. Romanes. Crown 8vo. 5-y. 



LI. THE COMMON SENSE OF THE EXACT 

 SCIENCES. By the late William King- 

 don Clifford. Second Edition. With 

 loo Figures. $s. 



