SCI ENCE. -AD VERTISEMENTS. 



SCIENCE^ r ' 



Ivlodern Theory of 

 Physical Phenomena 



RADIO-ACTIVITY, 

 IONS, ELECTRONS 



By AUGUSTO RIGHI 



Professor of Physics in the University of Bologna. 



Authorized Translation by 



AUGUSTUS TROWBRIDGE 



Professor of Blathematical Physics in 

 the University of Wisconsin. 



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Published every Friday by 



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 The 



American Historical 

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Vol. X, No. 1 OCTOBER, 1904 



The University of Paris in the Sermons of the Thirteenth 



Century. Charies H. Haskins. 

 English Poetry and English History. Goldwin Smith. 

 The Naming of America. Edwarh G. Bourne. 

 Nova Scotia and New England during the Revolution. 



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The Physical Review. 



A JOURNAL Of EXPERIMENTAL. AND 

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CVI. January, 1905. 



TABLE OF CONTENTS. 



The Kquilibrium Pressure of a Vapor of a Curved 

 Surface. ARTHUR A. Bacon 



On the CoefHcient of Expansion of Quartz 



Harrison McAllister Randall 



CoeiHcients of Linear Expansion at Low Tempera- 

 tures. H. D. Ayrks 



Note on ttie Coefficients of Expansion at Low Tem- 

 perature. J. S. Shearer 



Electric Double Refraction in Carbon Disnlphide at 

 Low Potentials. GUSTAF W. ElmEN 



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