4 The International Scientific Series. (Continued.) 



XXXV. VOLCANOES : What they Are and what they Teach. By 

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XXXVI. SUICIDE : An Essay in Comparative Moral Statistics. By 

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XXXVII. THE FORMATION OF VEGETABLE MOULD, THROUGH 

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XXXIX. THE BRAIN AND ITS FUNCTIONS. By J. LTJYS. $1.50. 



XL. MYTH AND SCIENCE. An Essay. By TITO VIGNOLI. 

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XLIV. ANIMAL INTELLIGENCE. By GEOBGE J. ROMANES. $1.75. 



XLV. MAN BEFORE METALS. By N. JOLT, Correspondent of 

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XL VI. THE ORGANS OF SPEECH AND THEIR APPLICA- 

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

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XLVIII. ORIGIN OF CULTIVATED PLANTS. By ALPHONSE DE 

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