SCIENCE AND PHILOSOPHT. 5 



HERBERT SPENCERS MISCELLANEOUS WORKS. 



Education: Intellectual, Moral, aud Physical. 12mo Cloth, $1.25; cheap edi- 

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The Study of Sociology. 12mo Cloth, $1.50. 



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Illustrations of Universal Progress. 12mo. Cloth, $2.00. 

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The Factors of Organic Evolution. Reprinted, with Additions, from "The 

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Philosophy of Style. 12mo. Flexible cloth, 50 cents. 



Herbert Spencer on the Americans, and the Americans on B'er- 

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The Man ver.^us the State. Containing "The New Toryism," "The Cominj? 

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JAMES SULLY'S WORKS 



Outlines of Psychology, with Special Reference to the Theory of Education 

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Illusions: A Psychological Study. By James Sully, author of "Sensation and 

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WORKS OF PROFESSOR JOHN TYNDALL. 



Contributions to Molecular Physics in the Domain of Kadiant 

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Heat as a Mode of Motion. By Prof. John Ttndall. New edition. 12mo. 

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Lessons in Electricity, at the Royal Institution, lS75-'76. By 

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Light and Electricity : Notes of Two Courses of Lectures before the Royal In- 

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Six Lectures on Light. Delivered in America in 1872-"73. By Prof. John 

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Sound. By Prof. John Tynpall. Revised and enlarged edition. Illustrated. 

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The Forms of Water, in Clouds and Rivers, Ice and Glaciers. 



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