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GEORGE BOOLE'S COLLECTED LOGICAL WORKS 



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Vol. II. LAWS OF THOUGHT (Co mplete). Now ready. Vol. I., later. 



PROBLEMS OF SCIENCE 



By Federtgo Enriques. Authorised translation by Katharine 

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THE CONTINGENCY OF THE LAWS OF NATURE 



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WILLIAM OUGHTRED 



A great Seventeenth-Century Teacher of Mathematics. By Feorian 

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FUNDAMENTAL CONCEPTIONS OF MODERN MATHE- 

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"Open Court" Classics 

 Vol. III. THE GEOMETRICAL LECTURES OF ISAAC 



BARROW. Translated from a first edition copy and provided with an 

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Vol. IV. DIDEROT'S EARLY PHILOSOPHICAL WORKS 



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THE PHILOSOPHY OF WANG YANG-MING 



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Already Translated into Seven Languages 



AN ETHICAL SYSTEM BASED ON THE LAWS OF 



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THE GOSPEL OF BUDDHA 



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