The International Scientifc 5eri! (Continued.) 



35. VOLCANOES : What they Are and what Ihey Teach. By John W. Judd, 



F. R. S., Professor of Geology in the Royal School of Mines. With 96 Il- 

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36. SUICIDE: An Essay in Comparative Moral Statistics. By Henrt Mok- 



SELLi, M.D., Professor of Psychological Medicine, Royal University, 

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37. THE FORMATION OF VEGETABLE MOULD, THROUGH THE AC- 



TION OF WORMS. With Observations on their Habits. By Charles 

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38. THE CONCEPTS AND THEORIES OF MODERN PHYSICS. By J. B. 



Stallo. $1.75. 



39. THE BRAIN AND ITS FUNCTIONS. By J. LuTS. $1.50. 



40. MYTH AND SCIENCE. By Tito Vignoli. $150. 



41. DISEASES OF MEMORY: An Essay in the Positive Psychology. By Th. 



RiBOT, author of " Heredity." $1.50. 



42. ANTS. BEES, AND WASPS. A Record of Obsen-atinns of the Habits of 



the Social Hymenoptera. By Sir John Lubbock, Bart, F. R. S., D. C. L., 

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43. SCIENCE OF POLITICS. By Sheldon Amos. $1.75. 



44. ANIMAL INTELLIGENCE. By Geoege J. Romanes. $1.75. 



45. MAN BEFORE METALS. By N. Jolt, Correfpondent of the Institute. 



With 148 Illustrations. $1.75. 



46. THE ORGANS OF SPEErH AND THFIR APPLICATION IN THE 



FORMATION OF ARTICULATE SOUNDS. By G. H. von Meyep. Pro- 

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47. FALLACIES: A View of Logic from the Practical Side. By Alteed 



SiDGWicK, B. A., Oxon. $1.75. 



48. ORIGIN OF CULTIVATED PLANTS. By Alphonse de Canbolle. $2.00. 



49. JELLY-FISH, STAR-FISH, ANT) SEA-URCHINS. Being a Research on 



Primitive Nervous Systems. By George J. Romanes. $1.75. 



50. THE COMMON SENSE OF THE EXACT SCIENCES. By the late WnjL- 



L4.M KiNGDON Clifford. $1.50. 



51. PHYSICAL EXPRESSION: Its Modes and Principles. By Francis War- 



ner, M. D., Assistant Physician, and Lecturer on Botany to the London 

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2. ANTHROPOID APES. By Robert Haptmann. Professor in the University 

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New York : D. APPLETON & CO., 1, 3, & 5 Bond Street. 



