The International Scientific Series continued. 

 XXXIV. ILLUSIONS : a Psychological Study. By JAMES 



SULLY. Fourth Edition. 



XXXV. VOLCANOES : what they are and what they teach. 



By JOHN W. JUDD, F.E.S. Fifth Edition. With 96 Illustrations. 



XXXVI. SUICIDE : an Essay on Comparative Moral Statistics. 



By Professor H. MOBSELLI. Third Edition. 



XXXVII. The BRAIN and its FUNCTIONS. By J. LUYS, 



Physician to the Hoppice de la Salpetriere. With numerous Illus- 

 trations. Third Edition. 



XXXVIII. MYTH and SCIENCE : an Essay. By TITO VIGNOLI. 



Fourth Edition. 



XXXIX. The SUN. By C. A. YOUNG, Ph.D., LL.D. Fifth Ed. 



With numerous Illustrations. 



XL. ANTS, BEES and WASPS. A Record of Observations 

 on the Habits of the Social Hymenoptera. By LORD AVEBURY. 

 Fourteenth Edition. With 5 Chromo-lithographic Plates. 



XLI. ANIMAL INTELLIGENCE. By GEO. J. ROMANES, 



LL.D., F.B.S. Sixth Edition. 



XLII. The CONCEPTS and THEORIES of MODERN 



PHYSICS. By J. B. STALLO. Third Edition. 



XLIII. DISEASES of MEMORY. An Essay in the Positive 

 Psychology. By TH. RIBOT. Fourth Edition. 



XLIV. MAN BEFORE METALS. By N. JOLY, Corres- 

 pondent de 1'Institut de France. Fifth Edition. With 148 

 Illustrations. 



XLV. The SCIENCE of POLITICS. By Prof. SHELDON 



AMOS. Third Edition. 



XL VI. ELEMENTARY METEOROLOGY. By ROBERT H. 



SCOTT. With 11 Plates and 40 Figures in Text. Seventh Edition. 



XLVII. The ORGANS of SPEECH. By GEORG HERMANN 



VON MEYER. With 47 Illustrations. 



XL VIII. FALLACIES : a View of Logic from the Practical Side. 

 By ALFRED SIDGWICK. Second Edition. 



XLIX. The ORIGIN of CULTIVATED PLANTS. By 



ALPHONBE DE CANDOLLE. Second Edition. 



L. JELLY FISH, STAR FISH and SEA URCHINS. 



Being a Research on Primitive Nervous Systems. By G. J. 

 ROMANES, LL.D., F.R.S. Second Edition. 



LI. The COMMON SENSE of the EXACT SCIENCES. 



By the late WILLIAM KINGDOM CLIFFORD. Third Edition. With 



LII. PHYSICAL EXPRESSION : its Modes and Principles. 

 By FRANCIS WARNER, M.D., F.R.C.P. Second Edition. With 

 60 Illustrations. 



