The International Scientifi: »Serte!— (Continued.) 



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



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36. SUICIDE; An Essay in Comparative Moral Statistics. By Henbt Mok- 



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



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



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



40. MYTH AND SCIENCE. By Tito Vignoli. $1.60. 



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



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42. ANTS, BEES, AND WASPS. A Record of Observations of the Habits of 



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



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



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



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46. THE ORGANS OF SPEECH AND THEIR APPLICATION IN THE 



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47. FALLACIES; A View of Logic from the Practiojil Side. By Alpbed 



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48. ORIGIN OF CULTIVATED PLANTS. By Aiphonbe ue Candollb. $2.00. 



49. JELLY-PISH, STAR-FISH, AND SEA-URCHINS. Being a Research on 



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



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51. PHYSICAL EXPRESSION: Its Modes and Principles. By Feanois Wae- 



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53. ANTHROPOID APES. ByRoBEET Haetmann, Professor in the University 

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